We can construct a genetic map to determine the order of the genes on the chromosome:
n--(7.9)--o--(7.4)--p
The distance between n and p is 15.7, which is the sum of the distances between n and o and between o and p:
Distance between n and o + Distance between o and p = 15.7
7.9 + 7.4 = 15.3
Therefore, the remaining distance between p and n must be 0.4 units. Since we don't have any information about the recombination frequency between p and n, we can't determine their exact order.
In summary, the likely order of the genes on the chromosome is n-o-p, with a distance of 7.9 units between n and o, a distance of 7.4 units between o and p, and an unknown distance of 0.4 units between p and n.
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what is the product of starch hydrolysis by gamma-amylase?
a. Cellobiose
b. Maltose
c. Glucose
d. dextrin
The product of starch hydrolysis by gamma-amylase is called as Maltose which is given by option B.
Maltose, commonly referred to as malt sugar, is a substance produced during the germination of grains that serves as an intermediary in the digestion of starch and glycogen. It is produced by the enzymatic hydrolysis of starch (a homopolysaccharide), which is mediated by the enzyme amylase. The maltase enzyme further hydrolyzes maltose to provide two D-glucose molecules.
Amylase is an enzyme that naturally exists in some animals' and humans' saliva and helps with digestion. It hastens the hydrolysis, or breakdown, of starch into simple sugars. In order to hydrolyze dietary starch into disaccharides and trisaccharides, which are then turned into glucose and consumed as fuel, the pancreas and salivary glands primarily produce amylase.
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which system is the command system for the entire body?A. Brain ; B · Spinal cord ; C · Hipothalamus ; D · Pituitary gland
The command system for the entire body is the Brain. Therefore the correct option is option A.
The nervous system is a network of specialized tissues that helps coordinate the body's activities by sending signals to and from various organs. The nervous system is divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS).
The brain and spinal cord make up the central nervous system, while the nerves outside the CNS make up the peripheral nervous system. The brain is the most complex and critical organ in the human body. It regulates the body's functions and helps you to interact with the world around you. Therefore, the correct answer is option A, the Brain.
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which three features are present in both plant cells and most bacterial cells?
Both plant and bacterial cell are different, the plant is eukaryotic whereas the bacteria is prokaryotic, but there are many similarities between them like,
Both plant cell and the bacterial cell have cell wall for protection of inner organelle and also separates the molecular machinery of life from the outside environment, while allowing for transport into and out of the cell.
The bactrial and plant cell have DNA as their genetic material
The plant and bacterial both perform their own metabolic reaction and do not depend on other.
Both bacteria and plant cell, have both have vesicles and vacuoles.
They have cytoskeleton to provide support to the cell.
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b. Explain the difference between a “continental(c)” air mass, and a “maritime(m)” air mass. __________________________________________________________________________________________ ___________________________ . c. Explain the difference between a “polar(P)” air mass and a “tropical(T)” air mass. 2. They describe an air mass by its Moisture content and Temperature, so each air mass has two letters. Name each air mass and describe it by moisture content and temperature. cP = cT = mP = mT =
A maritime air pressure comes from an ocean and is humid, whereas a continental air mass is dry and comes from a landmass. c. A tropical air mass is warm and comes from low latitudes, whereas a polar air mass is frigid and comes from high latitudes.
What distinguishes a marine M air mass from a continental C air mass?Humid air masses that come from oceans or other big bodies of water are referred to as maritime air masses. Dry air masses called continental air masses come from the land. Warm, wet air masses from the equatorial area are known as equatorial air masses.
What distinguishes a mP air mass from a mT air mass?Due to decreased sun angles, drier country below, and colder land below, the mT airmass changes. Cold ocean currents or ocean waters at high latitudes are where mP air is produced. This air does not contain as much moisture as mT air.
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in the marine trophic pyramid at which trophic level do you find small fish, crustaceans, and sea stars?
In the marine trophic pyramid, small fish, crustaceans, and sea stars are found at the second trophic level.
The marine trophic pyramid is an essential concept in the ocean’s food chain. Trophic levels in the marine ecosystem illustrate the role of different species in the food chain. These levels depict the energy transfer from one organism to another in an ecosystem.
In the marine trophic pyramid, the trophic level that represents small fish, crustaceans, and sea stars is at the second trophic level. This trophic level consists of organisms that consume primary producers as their main source of energy. These organisms are commonly referred to as herbivores or primary consumers. Animals in this category include small fish such as anchovies and sardines, sea stars, lobsters, and crabs.
Since the food chain in the marine ecosystem is interrelated, these organisms play a significant role in the survival of other animals in the food chain.
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_________ enzymes are stable in part because they contain relatively low amounts of the amino acid glycine.
a. Psychrophilic b. Acidophilic c. Thermophilicd. Halophilice. Barophilic
The answer is C - Thermophilic enzymes are stable in part because they contain relatively low amounts of the amino acid glycine. Thermophilic enzymes are able to survive and remain active at high temperatures due to the low amounts of glycine they contain, which gives them increased stability and allows them to remain functional.
Enzymes- Enzymes are protein-based substances produced by living organisms. The metabolism of living things requires enzymes to function correctly. Enzymes can speed up chemical reactions by reducing the activation energy of the reaction, enabling it to proceed at a much faster rate.
Amino acids- Amino acids are the building blocks of proteins. They are organic compounds that are both basic and acidic. There are 20 common amino acids that are found in proteins. They all have an amino group (-NH2) and a carboxyl group (-COOH) that combine to form an α-amino acid.
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what the meaning of vocabulay ?
Vocabulary is a set of words that are familiar to a person or a language. Vocabulary is the foundation of language learning, and it is essential to know a good amount of vocabulary to read, write, and speak in any language.
Vocabulary is an essential part of language learning, It enables people to communicate their thoughts and ideas effectively. There are different types of vocabulary:
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whenever a molecule is oxidized, another molecule must be reduced. T/F
The statement is True. Whenever a molecule is oxidized, another molecule must be reduced.
Molecules are essential to life because they are involved in many important biological processes, such as metabolism, respiration, and photosynthesis. They also play a critical role in the structure and function of cells and tissues.
Biological molecules can be classified into four major groups: carbohydrates, lipids, proteins, and nucleic acids. Carbohydrates provide energy for the body, while lipids serve as a major component of cell membranes and play a role in energy storage. Proteins are involved in a wide range of biological functions, including enzymatic reactions, cell signaling, and structural support. Finally, nucleic acids are responsible for storing and transmitting genetic information.
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Identify all the statements that are true regarding the main theory of primate social behavior.
- Primate social behavior is influenced by evolution.
- Genes of individuals who engage in behaviors favored by natural selection are passed from one generation to the next.
- Social behaviors that enhance reproductive fitness are generally natural instincts rather than learned.
- Behaviors that only enhance survival are favored by natural selection.
The following statements are true regarding the main theory of primate social behavior:
Primate social behavior is influenced by evolution.Genes of individuals who engage in behaviors favored by natural selection are passed from one generation to the next.Social behaviors that enhance reproductive fitness are generally natural instincts rather than learned.What is primate social behavior?Primate social behavior refers to the behavior patterns that are exhibited by members of the primate order (primates include lemurs, lorises, tarsiers, monkeys, and apes) in their natural social settings.
Primate social behavior includes a wide range of interactions between individuals, such as grooming, communication, cooperation, competition, aggression, and mating behaviors. These behaviors are shaped by various factors, including genetics, environmental factors, and social learning.
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All of the following are filamentous proteins except Multiple Choice actin myosini troponin tropomyosin troponin and tropomyosin
Actin, myosin, troponin, and tropomyosin are filamentous proteins.
However, the answer is "Myosini."Myosin is a motor protein that creates movement within cells, it is not a filamentous protein. Filamentous proteins are proteins that are long, thin, and fibrous, and have various functions, including providing structural support and aiding in cell movement. Actin, myosin, troponin, and tropomyosin are all examples of filamentous proteins.Actin is a thin protein filament that plays a role in muscle contraction, cell division, and cell migration. It is essential for the structure and function of the cytoskeleton, which provides mechanical support to cells and helps them maintain their shape.Myosin is a motor protein that produces movement by interacting with actin filaments. It plays a vital role in muscle contraction, cell division, and cell migration.Troponin and tropomyosin are two regulatory proteins that are essential for muscle contraction. They are involved in the regulation of the actin-myosin interaction that produces the contraction.Troponin is a three-part protein complex that controls the position of tropomyosin on the actin filament. Tropomyosin is a long, fibrous protein that binds to the actin filament and stabilizes it, making it more resistant to deformation. In summary, all the proteins mentioned in the question are filamentous proteins, except Myosin.
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Which of the following is the best example of an adaptation that improves an organism's "fitness"?
A. Dark-colored lizards living on light rocks.
B. A thick coat of fur on animals living in the hot desert.
C. Lizards with sticky toe pads live among tall trees.
Answer:
C. Lizards with sticky toe pads live among tall trees. is the best example of an adaptation that improves an organism's "fitness". The adaptation allows the lizards to climb and live in their arboreal habitat, increasing their chances of survival by avoiding predators and accessing resources.
Compare and contrast how people taste sweetness, with how people taste spiciness. PLEASE HELPPP!!!!
Answer:
spiciness trigger is on one side of the tongue so is the sweetness
Explanation:
i did this
What is a permanent change in a gene or a chromosome called?
A permanent change in a gene or chromosome is called a mutation.
Mutations can occur spontaneously during DNA replication, as a result of exposure to certain environmental factors such as radiation or chemicals, or as an inherited genetic trait. Mutations can range from single nucleotide changes (point mutations) to larger-scale alterations such as insertions, deletions, and rearrangements of DNA segments.
Mutations can have varying effects on an organism's phenotype, depending on their location in the genome and the nature of the mutation. Some mutations can lead to genetic disorders or increased risk of certain diseases, while others may have no effect or even confer beneficial traits.
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___ happens when a bud is formed on the outside of a spongebuddingfragmentationregenerationmolting
When cell divide at a specific location to form a new organism from an outgrowth or bud, the process is known as asexual reproduction, or budding or blastogenesis.
As an illustration, the term "bud" refers to the tiny, bulbous protrusion that develops from the yeast cell. With the exception of mutations, asexual reproduction produces clone of the parent organism that are genetically identical to the original. In order to reproduce, creatures like hydras need regenerative cells during the budding process.
As a result of repeated cell division at one specific location, a bud develops as a protrusion. These buds develop into little individuals after they are fully matured, and these new, independent individuals eventually separate from the parent body.
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How do farming
methods cause water pollution?
Answer:
Agricultural waste like pesticides, fertilizers, and insecticides
Explanation:
1. Fertilizers residues stimulate the growth of Aquatic plants
2. Overuse of fertilizer which drain off inti the water bodies causes eutrophication (i.e the process by which nitrates and phosphate are washed into the water bodies resulting to algae boom)
3. agricultural waste may accumulate to a toxic level thereby poisonous to Aquatic organisms
The respiratory system includes which of the following? Select all that apply. A. nose. B. lungs. C. alveoli. D. trachea. E. bronchi
The respiratory system includes nose, lungs, alveoli, trachea, and bronchi. These organs aid in breathing. Thus, the correct options are A, B, C, D, and E.
What is the respiratory system?
The respiratory system is the body's network of organs and tissues that aid in breathing. The system's primary function is to transport oxygen into the body and remove carbon dioxide, which is a waste product of cellular respiration. The respiratory system is made up of the nose, nasal cavity, pharynx, larynx, trachea, bronchi, and lungs.
As part of the respiratory system, these structures work together to accomplish breathing, which is the exchange of oxygen and carbon dioxide between the body and the environment. The nose is the body's primary breathing passage. The nose contains hair-like structures called cilia, which trap dust and other particles that enter the nasal cavity.
When the particles are trapped, they are either expelled or swallowed, and this helps to prevent them from entering the lungs. The lungs are the respiratory system's primary organs, and they contain air sacs called alveoli. The alveoli are where oxygen and carbon dioxide are exchanged. The trachea and bronchi are air passages that transport air to and from the lungs. They are lined with cilia that move mucus out of the lungs and up to the throat, where it is expelled or swallowed.
Therefore, the correct options are A, B, C, D, and E.
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What stage of production are the cattle kept in large pastures? a. Cow/Calf Production b.Backgrounding C.Feedlot d.Both A & B
a. Cow/Calf Production stage of production are the cattle kept in large pastures
What does "backing cattle on pasture" mean?Growing steers and heifers from weaning until they enter the feedlot for finishing is known as backgrounding. It is appropriate for farmers who do not want to finish cattle or keep a cow herd but still want to add weight to calves after weaning.
the part of the cow-calf industry that generates feeder calves for further feeding or grazing. Recently weaned calves gain body weight during the backgrounding or stocker phase of production, culminating in yearlings that are prepared for feedlots. Cattle are fed during the final phase of production until they achieve market weight.
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a specific sequence on the dna called a(n)__________ sequence signals the end of a gene during transcselect all of the following that are present in a bacterial operon.iption.
Answer:
I believe the answer is
Explanation:
Terminator or stop codon
aylin diagrammed a food web of algae, snails, ducks, small fish, large fish, crickets, hawks and snakes that she observed during a summer trip to her grandparents' farm. what is the correct arrangement of these organisms on an energy pyramid.
Aylin diagrammed a food web of algae, snails, ducks, small fish, large fish, crickets, hawks and snakes that she observed during a summer trip to her grandparents' farm. The correct arrangement of the organisms in the energy pyramid is algae → small fish → large fish → ducks → hawks → snakes
The arrangement of the organisms on an energy pyramid depends on how much energy is available to them. The energy pyramid shows how energy flows through a food chain.Aylin diagrammed a food web that included algae, snails, ducks, small fish, large fish, crickets, hawks, and snakes during a summer trip to her grandparents' farm.
Energy pyramids depict how energy travels through food chains from lower to higher trophic levels. The arrangement of organisms on an energy pyramid is as follows: Algae at the base of the pyramid, followed by small fish, larger fish, ducks, hawks, and snakes. The organisms in the lower trophic levels, such as the algae, contain more energy than the higher trophic levels, such as the snakes. This is due to the fact that as the energy travels up the food chain, some of it is lost as heat during respiration, resulting in less energy for the higher trophic levels.
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Can you identify the major theme illustrated by each of the following examples? If necessary, you may review the themes in Chapter 1 of your book. Match the themes on the left with the examples on the right. Not all themes will be used Reset Help Pathways that transform energy and matter The fact that glycolysis occurs in almost all organisms suggests that it was used by very early ancestors common to all the domains of life Interactions within biological systems Electrons captured from food by the NADH formed in the first two stages of electron transport are stripped of their energy, a little bit at a time, until they are finally combined with oxygen to form water. Evolution Information flow For many endurance athletes, the rate at which oxygen is provided from the lungs, to the blood, to Relationship of structure to function working muscles, is the limiting factor in their performance The inner membrane of a mitochondrion is folded within the outer membrane. The space between the membranes acts as a temporary reservior for hydrogen ions, which cannot pass through the membranes Submit Request Answer
Pathways that transform energy and matter
Electrons captured from food by the NADH formed in the first two stages of electron transport are stripped of their energy, a little bit at a time until they are finally combined with oxygen to form water.
Evolution: The fact that glycolysis occurs in almost all organisms suggests that it was used by very early ancestors common to all the domains of life.
Information flow: For many endurance athletes, the rate at which oxygen is provided from the lungs to the blood, to working muscles, is the limiting factor in their performance.
Relationship of structure to function: The inner membrane of a mitochondrion is folded within the outer membrane. The space between the membranes acts as a temporary reservoir for hydrogen ions, which cannot pass through the membranes.
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is staphylococcus aureus gram positive or negative
Gram-positive bacteria are known as Staphylococcus aureus. This implies that its cell wall contains a thick peptidoglycan layer that retains the violet crystal stain used in the Gram staining process.
Based on differences in cell wall structure, this property is used to classify bacteria into two general categories: Gram-positive and Gram-negative. Gram-positive bacteria are frequently linked with infections because they can cause skin infections, pneumonia, and sepsis.
The cell wall of Gram-positive bacteria, such as Staphylococcus aureus, is composed of multiple layers of peptidoglycan, which offers structural support as well as protection from the external environment.
The peptidoglycan layer is also related to teichoic acids, which aid in cell wall synthesis and immune system recognition. Gram-negative bacteria, on the other hand, have a thinner layer of peptidoglycan.
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Which of the following molecules is the lowest-energy donor of electrons to the electron transport chain?
A. NADH
B. water
C. FADH2
D. ATP
The molecule that is the lowest-energy donor of electrons to the electron transport chain is FADH2.
What is the electron transport chain? The electron transport chain (ETC) is a sequence of electron carriers in the inner mitochondrial membrane that facilitate the generation of ATP via oxidative phosphorylation. The final electron acceptor in the electron transport chain is oxygen.
NADH and FADH2 are important electron donors to the electron transport chain. They donate electrons to complex I (NADH) and complex II (FADH2), respectively, which then transfer them through the electron transport chain to complex IV, where oxygen is the final electron acceptor.
The energy produced by electron transfer is used to pump protons across the inner mitochondrial membrane, forming a proton gradient that drives ATP synthesis via ATP synthase. Therefore, NADH and FADH2 are important contributors to ATP synthesis via oxidative phosphorylation.
What is FADH2? FADH2 is a type of reduced flavin adenine dinucleotide (FAD), a cofactor involved in redox reactions in cells. FADH2 is created when FAD accepts two electrons and two protons. FADH2 is a substrate for succinate dehydrogenase (complex II) in the electron transport chain, where it donates electrons to the chain via its flavin group.
Since the reduction potential of FADH2 is lower than that of NADH, fewer protons are pumped across the mitochondrial membrane when FADH2 donates electrons to the chain. Therefore, NADH donates more energy to the electron transport chain than FADH2 does.
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where in the cell does the krebs cycle take place?
The mitochondria's matrix, the organelle's deepest space, is where the Krebs cycle is carried out.
The Krebs cycle, also known as the citric acid cycle, is a series of biochemical reactions that take place in the mitochondria of eukaryotic cells. The mitochondria are known as the "powerhouse" of the cell because they produce most of the cell's energy in the form of ATP (adenosine triphosphate).
The Krebs cycle is the second stage of cellular respiration, which is the process by which cells convert glucose into ATP. During the Krebs cycle, acetyl-CoA molecules are broken down, releasing energy that is used to produce ATP. The Krebs cycle also generates molecules such as NADH and FADH2, which are used in the final stage of cellular respiration to produce additional ATP.
Overall, the Krebs cycle takes place in the matrix of the mitochondria, which is the innermost compartment of the organelle.
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What type of hybrid zone involves a weakening of reproductive barriers?
Answer:Fusion
Explanation:
Which of the following statements correctly describe(s) the driving forces for diffusion of na and k ions through their respective channels? select all that apply. view available hint(s)for part b because ions carry a charge (positive or negative), their transport across a membrane is governed not only by concentration gradients across the membrane but also by differences in charge across the membrane (also referred to as membrane potential). together, the concentration (chemical) gradient and the charge difference (electrical gradient) across the plasma membrane make up the electrochemical gradient. consider the plasma membrane of an animal cell that contains a sodium-potassium pump as well as two non-gated (always open) ion channels: a na channel and a k channel. the effect of the sodium-potassium pump on the concentrations of na and k as well as the distribution of charge across the plasma membrane is indicated in the figure below. a diagram of a plasma membrane containing a sodium-potassium pump, a non-gated na plus channel, and a non-gated k plus channel. outside the cell, the concentration of na plus is high, the k plus concentration is low, and the charge is positive. inside the cell, the concentration of na plus is low, the k plus concentration is high, and the charge is negative. na plus flows through the na plus channel inside the cell, while k plus flows through the k plus channel outside the cell. the sodium-potassium pump is moving three na plus ions outside and two k plus ions inside. which of the following statements correctly describe(s) the driving forces for diffusion of na and k ions through their respective channels? select all that apply. the diffusion of na ions into the cell is facilitated by the na concentration gradient across the plasma membrane. the diffusion of na ions into the cell is impeded by the electrical gradient across the plasma membrane. the diffusion of k ions out of the cell is impeded by the k concentration gradient across the plasma membrane. the diffusion of k ions out of the cell is impeded by the electrical gradient across the plasma membrane. the electrochemical gradient is larger for na than for k .
The statements correctly describe the driving forces for the diffusion of Na+ and K+ ions through their respective channels are
The diffusion of Na+ ions into the cell is facilitated by the Na+ concentration gradient across the plasma membrane.The diffusion of K+ ions out of the cell is impeded by the electrical gradient across the plasma membrane.The electrochemical gradient is larger for Na+ than for K+The diffusion of Nа ions into the cell is fаcilitаted by the Nа concentrаtion grаdient аcross the plаsmа membrаne. The diffusion of K ions out of the cell is impeded by the K concentrаtion grаdient аcross the plаsmа membrаne. The diffusion of K ions out of the cell is fаcilitаted by the electricаl grаdient аcross the plаsmа membrаne. The electrochemicаl grаdient is lаrger for Nа thаn for K.
Your question is incomplete, but most probably your full question can be seen in the Attachment.
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vertebrates have circulatory systems in which blood remains within vessels that exchange materials with the interstitial fluid.tre or false
True, vertebrates have circulatory systems in which blood remains within vessels that exchange materials with the interstitial fluid.
Vertebrates are animals with a backbone or spinal column. These include mammals, birds, reptiles, amphibians, and fishes. All vertebrates have a circulatory system that distributes nutrients and oxygen to their bodies and removes waste. The circulation of blood in vertebrates is closed, which means that blood remains within vessels that exchange materials with the interstitial fluid that surrounds their cells. The vertebrate circulatory system is divided into three components: the heart, blood vessels, and blood. The heart is a muscular organ that pumps blood through the body. The blood vessels are tubes that carry blood to and from the heart.
The blood carries nutrients, gases, and wastes throughout the body. The circulatory system provides oxygen to the body's tissues and removes carbon dioxide from them. The vertebrate circulatory system is crucial for maintaining homeostasis in the body. It regulates body temperature and pH, and it also helps to fight off infections by distributing white blood cells throughout the body. Blood is also responsible for transporting hormones and other signaling molecules throughout the body, allowing the different organs and systems to communicate with each other.
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ASAP PLS
Which organism has a distinct central nervous system? 1. starfish 2. jellyfish 3. crayfish 4. clam
A creature with a distinctive central nervous system is the crayfish. In crayfish, the intersegmental axon cables that connect the segmental ganglia form the central nervous system.
What does a human body's organism mean?Millions of minuscule living things, collectively known as the human microbiota, live inside each and every cell of the body. Microbes known as bacteria are most frequently found in the gut, nose, and mouth.
A living thing can it survive on its own?The interaction between different creatures and their surroundings is a topic of study in the ecology of organisms. An individual must rely on other living organisms and the underlying physical environment in order to survive; they cannot exist entirely in isolation from other similar species.
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13. A change in a gene causes a polar bear cub that lives in a snowy climate to be born
with a black coat instead of a white one, making it more vulnerable to predators.
This is an example of which type of Mutation.
Polar bears can stay warm because of their extremely thick fur. They have two fur layers: 1. A covering of guard hairs, or long hairs, that acts as their raincoat, and 2. A layer of thick, fuzzy, downy material is directly adjacent to their skin.
What is mutation?A mutation is a change in the genome's nucleic acid sequence, whether it be in a living thing, a virus, or extrachromosomal DNA. Viral genomes are made up of either DNA or RNA.Mutations result from mistakes made during DNA or viral replication, mitosis, meiosis, or other types of DNA damage (such as pyrimidine dimers brought on by exposure to ultraviolet radiation), which may then undergo error-prone repair (especially microhomology-mediated end joining), bring about a mistake during other forms of repair, or bring about a mistake during replication (translesion synthesis). Due to mobile genetic elements, mutations can also be caused through the insertion or deletion of DNA segments. The observable traits (phenotype) of an organism may or may not change as a result of a mutation.To learn more about Mutation, refer to:
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which letter indicates a choroid plexus, which produces cerebrospinal fluid (csf) in all four ventricles of the brain?
The letter D indicates a choroid plexus, which produces cerebrospinal fluid (CSF) in all four ventricles of the brain.
The ventricles are interconnected cavities filled with cerebrospinal fluid (CSF) found within the brain's cerebral hemispheres and brainstem. These ventricles are hollow spaces filled with cerebrospinal fluid that support the brain and keep it hydrated. The brain's ventricles have four areas: the lateral ventricles, the third ventricle, the cerebral aqueduct, and the fourth ventricle.The choroid plexus is a cluster of cells found in the ventricles of the brain that secrete cerebrospinal fluid (CSF). In each of the brain's four ventricles, there is a choroid plexus that generates cerebrospinal fluid. The choroid plexus is made up of ependymal cells, which are specialized epithelial cells that line the ventricles and create CSF.Cerebrospinal fluid (CSF) is a fluid that surrounds the brain and spinal cord, providing nutrients and cushioning. CSF is a transparent, colorless liquid that circulates throughout the brain and spinal cord, providing a cushioning effect to protect the brain and spinal cord from injury or trauma.Learn more about choroid plexus: https://brainly.com/question/11382230
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The complete question is "In the given diagram, which letter indicates a choroid plexus, which produces cerebrospinal fluid (CSF) in all four ventricles of the brain?"
which of the traditional five senses are dolphins believed not to possess?
Dolphins do not have any orifices for smelling on their body, and more importantly they do not have an olfactory lobe in their brain, and they completely lack olfactory nerves.
They just breathe through the blowhole on top of their head, which is an analogue to our noses. Since they could no longer use the sense—blowholes are closed when the dolphin is underwater—the areas of the brain that used to control scent likely withered and shrivelled over time.
A dolphin's sense of taste is also deficient since only the genes responsible for feeling salty flavors are still active, whereas the genes responsible for tasting sweet, sour, spicy, and savory have been turned off. And to make matters worse, as people age, taste receptors are lost. When dolphins are young and immature, they still have a sense of taste, but once they reach adulthood, this sense completely disappears.
In humans and other land mammals, these two senses are inextricably linked, so it makes likely that they would have atrophied at the same time. The desire for these senses was diminished by going back to the water.
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