Calculate the diploid & haploid numbers for each of the following organisms
Organism
Diploid number
Haploid number
Camel
70
Human
46
Squirrel
20
Apple
34
3
Mosquito
Frog
13
Lettuce
18
Explain how a human baby gets 46 chromosomes:
Answer:
Meiosis is the start of the process of how a baby grows. Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy. When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes.
What is the functions of the digestive, excretory, respiratory, circulatory, and lymphatic systems, and how do they interact to maintain the body's homeostasis?
Explanation:
Food and liquids are processed by the digestive system. After nutrients are absorbed during digestion, the excretory system removes solid waste products, or feces, through the rectum. The excretory system also works with the respiratory and circulatory systems and removes carbon dioxide (CO2) from the body.
Homeostasis, which refers to the body's capacity to maintain a steady internal environment despite changes in the external environment, is a state that is maintained by the respiratory, circulatory, lymphatic, excretory, and digestive systems working in concert. Although each of these systems has a unique job to do, they are all interrelated and dependent on one another to keep the body running smoothly.
What is a digestive system charge of ?The digestive system is in charge of converting food into nutrients that the body can absorb. It consists of the liver, pancreas, small and large intestines, stomach, mouth, oesophagus, and stomach. After then, the circulatory system delivers nutrients to the body's cells.
The kidneys, ureters, bladder, and urethra are part of it. The circulatory system and the excretory system collaborate closely to move waste materials to the kidneys for filtering and expulsion from the body.
The respiratory system is in charge of supplying the body with oxygen and expelling carbon dioxide. It consists of the lungs, trachea, bronchi, nose, and mouth. The respiratory system collaborates with the circulatory system to eliminate carbon dioxide and provide oxygen to the body's cells.
Nutrients, oxygen, and waste products are moved throughout the body through the circulatory system. It consists of the blood, blood vessels, and the heart. To provide nutrition and oxygen to the cells and eliminate waste, the circulatory system collaborates closely with the respiratory and digestive systems.
It is the job of the lymphatic system to remove extra fluid from bodily tissues and transport it back to the circulatory system. It consists of lymphatic organs like the spleen and thymus, lymph nodes, and lymphatic arteries. The lymphatic system contributes to immunological function and aids in the body's defence against illnesses and infections.
Overall, through controlling the body's internal environment, these systems cooperate to preserve homeostasis. For instance, the excretory system eliminates waste while the digestive system supplies nutrients for the body. These nutrients and waste materials are delivered to and removed from the body's cells via the circulatory system. The lymphatic system helps the body fight infections while the respiratory system supplies oxygen for cellular respiration.
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A pesticide was applied to a population of roaches, and it was determined that the LD50 was
55mg/kg . If the average mass of a roach was 0.02kg, which of the following approaches will
determine the dose in
mg per roach?
Based on the information given, the correct option will be C. 55mg/1kg × 0.02kg.
From the complete information, it was stated that a pesticide was applied to a population of roaches, and it was determined that the LD50 was 55mg/kg.In a situation where the average mass of a roach was 0.02kg, the approach that will determine the dose in mg per roach will be 55mg/1kg × 0.02kg.
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4. How does a sound wave vibrate?
Provide one example of Mutualism.
You must explain: The two organisms, how they both benefit, and any other necessary information to explain their interaction.Immersive Reader
Answer:
Cattle and egret
Explanation:
Mutualism is a type of symbiotic relationship involving two organisms whose actions cause them to benefit from one another. In other words, both organisms do one another a favour, hence, the relationship is said to be MUTUAL.
- An example of a mutualistic relationship is that of CATTLE AND EGRET. Cattle gets infested by certain parasites like ticks and fleas, which feeds on their blood. Egrets are bird species that flock around cattle to feed on these insect parasites. This relationship is mutual because, egrets help the cattle get rid of their parasite problem (cattle benefits) while the cattle provides food for the egrets when they harbor these parasites on their body (egret benefits).
eselson and Stahl relied on equilibrium density gradient centrifugation to resolve the DNA containing 14N from the DNA containing 15N.They started off with DNA in media containing the heavy isotope, then switched to media containing the lighter isotope and allowed DNA replication to take place. Under semiconservative model of DNA replication, after THREE rounds of replication, how many bands of DNA would you see and which band would contain more DNA molecules
Answer:
The correct answer would be - two bands ( one intermediate, and one light)- the light band contains more DNA molecules.
Explanation:
After the switching to the lighter isotope by the second round of replication where light strands are used as template strands, produces the light band of 14N.
After three rounds of semiconservative replication, where template strand contains both heavy and new formed light bands or nitrogen and produces so in a Density gradient, there will be 2 bands one light band and the other intermediate band.
Each tissue and organ in the body has a function, and its metabolism is adapted to its function. For example, one tissue may synthesize fatty acids that are stored and oxidized by another tissue. Classify each phrase as describing the liver, adipose tissue, muscle tissue, the brain, or blood.
my brain can't process this lol
The brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
Adipose Tissue:
These tissue store fat and use fat as the energy source.
Muscle:
It generate ATP as energy to provide energy for contraction.
Blood :
It transport nutrients and other metabolic substances between tissue and organ.
It process the
Brain:
It is the organ that cannot use fatty acid or glycogen as energy source,
Liver:
Use fatty acid, glucose or ketone bodies as fuel to generate energy.
Therefore, the brain is the tissue in the human body that cannot use fatty acid or glycogen as energy source.
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describe the structure of the ovule and the formation of the embryo sac
brainliest to the first well detailed correct answer
Answer:
An embryo sac is said to form when the haploid megaspore nucleus divides. It possesses two haploid nuclei and six haploid cells which do not have cell walls.
Explanation:
Decomposers ________. what is a Decomposers
Answer:
Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.
Hope this is what ur looking for
Explanation:
Answer:
Decomposers are organisms that break down dead or decaying organisms, they carry out decomposition, a process possible by only certain kingdoms, such as fungi.
Explanation:
help pls for brainliest
Answer:
There are two people affected
Explanation:
The black shapes are affected people, the white ones are unaffected
GUYS PLEASE PLEASE HELP WITH THIS!!!
Answer:
energy carried by waves: sound and radiant energy
Answer:
energy carried by waves-sound and radiant energy
Explanation:
I need a definition of representation and diversity
Answer:
resperation is the the action of breathing.
diversity is a range of different things.
Explanation:
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Which of following items is probably the most ductile?
A. slice of bread
B. piece of chewed gum
C. wooden blocks
D. piece of paper
Answer:
D I think
because ductile means that they can form without cracking
piece of chewed gum.
Explanation:
chewing gum is flexible. it shows both malleability and ductility
Which gland is enlarged in a young child and what is the main function of the hormone it secretes?
O A) Pineal – seasonality and salt resorption
B) Thyroid - metabolism
C) Thymus - immune system development
D) Pancreas - calcium storage
E) Adrenal – secondary sexual characteristics
Answer:
C
Explanation:
The thymus produces and secretes thymosin, a hormone necessary for T cell development and production. The thymus is special in that, unlike most organs, it is at its largest in children.
Answer:
The right answer is option C, thymus.
Thymus helps in immune system development. Its located behind sternum and helps in maturation of T lymphocytes.
Every organism needs energy to survive. A process in which oxygen is combined with the
breakdown of sugar (glucose) molecules, releasing energy and giving off carbon dioxide and
water, is known as which of the following reactions?
a. Transpiration
b. Cellular Respiration
C. Carbon Fixation
d. Photosynthesis
The gastrointestinal tract is absent in
Compare and contrast disorganized schizophrenia and paranoid schizophrenia.
Answer:
The paranoid subtype is characterized by the presence of hallucinations and delusions. In the disorganized one appears a behavioral disorganization and of the thought and language as well as an inappropriate affect. These patients tend to have an earlier onset, a worse prognosis, and a greater number of neurocognitive alterations.
Explanation:
Paranoid schizophrenics are characterized by sharp delusions, especially persecution ideas of grandeur, often with a corresponding aggressive reaction in response to the alleged persecution. There may be hallucinations of various kinds, to which patients react consecutively, but later, as deterioration occurs, apathy and indifference appear. Hallucinations are common. On the other hand, disorganized schizophrenia is another form of schizophrenia that is characterized by disorganization of speech, that is, the language is rambling and incoherent, the behavior is unpredictable, inappropriate and incongruous.
Answer:
The paranoid subtype is characterized by the presence of hallucinations and delusions. In the disorganized one appears a behavioral disorganization and of the thought and language as well as an inappropriate affect. These patients tend to have an earlier onset, a worse prognosis, and a greater number of neurocognitive alterations.
Explanation:
answer credit: genewho
2) Which of the following designates a female elephant? A: Bull B: Sow C: Cow D: Mare
Why were Domains added to the classification system after the time of Linnaeus?
Answer: With the development of powerful microscopes, scientists discovered many single-celled organisms that didn't fit into any of Linnaeus' kingdoms. As a result, a new taxon, called the domain, was added to the classification system.
Explanation:
That’s the right question
Answer:
oh cool
Explanation:
What are some functions of the Thalamus.
Answer:The thalamus is a small structure within the brain located just above the brain stem between the cerebral cortex and the midbrain and has extensive nerve connections to both. The primary function of the thalamus is to relay motor and sensory signals to the cerebral cortex
Explanation:
Siphos brother is an actor.
Answer:
good for siphos lol
Explanation:
I need help please help
Answer:
its d cause
Explanation:
Correlative Conjunctions are pairs of words used to connect two parts of a sentence with equal value.
Which of the following irrigation methods is most likely to result in salinization of the soil, especially if the agricultural fields are located in a warm climate with consistent sunlight
A Spray irrigation
Furrow irrigation
Flood irrigation
Drip Irrigation
Answer: Furrow Irrigation (B)
Explanation:
Furrow irrigation
Salinization of the SoilThe accumulation of water-soluble salts in the soil is known as salinization. Excess salts inhibit crop growth by decreasing their ability to absorb water, making salinization a resource concern.Surface irrigation in which trenches or "furrows" are created between crop rows in a field is known as furrow irrigation. Furrow irrigation is done by laying down short parallel channels down the length of the field in the direction of the predominant slope.Furrow irrigation is most likely to result in salinization of the soil, especially if the agricultural fields are located in a warm climate with consistent sunlightFor more information:
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Question 21
Neurons of the cerebral cortex never dip into the medulla.
O True
O False
Answer:
False
Explanation:
The cerebral cortex refers to the outer layer of the brain. This layer is formed by a thin film of nervous tissue that surrounds the surface of the cerebral hemispheres, with primates having a much more developed cerebral cortex than other animals.
the cerebral cortex is a thin layer of neurons and neuronal connections which is embedded in the neocortex(the neuronal cells of the cerebral cortex which form in the deep layer), it is not homogeneous, since it is made up of six layers of cells, each with specific and specific functions.
Different alleles produce different characteristics. True False
Answer:
Explanation:
Los alelos son formas alternas de un gen, que difieren en secuencia o función. Toda característica genéticamente determinada depende de la acción de cuando menos un par de genes homólogos, que se denominan alelos.
Which of the following biotic factors is associated with increasing the capacity of the organisms to move across fragmented landscapes? Patch size, connectivity,Patch shape, Distance from other landscape patches
Answer:
connectivity
Explanation:
Natural and anthropogenic alterations affect the landscape. The unmeasurable use of the land for farming, cattle industry, buildings, among many other activities, has caused a severe fragmentation in the original landscape that has been seriously affecting biodiversity.
Fragmentation occurs when a big extension is transformed into many different and smaller patches, separated by another type of cover. You can imagine, for instance, an area used for mono-culturing, which you can see as a homogeneous space of the same texture and color, and small green islands of original vegetation dispersed in this cropped area. These small islands are separated from each other by the crop.
These alterations produce patches or tesserae in the landscape. Patches are relatively homogenous areas with well-defined borders and environmental characteristics very different from those of the surrounding areas. These are like islands. You can think about patches or tesserae as the remaining pieces or units of the original landscape dispersed inside an affected bigger-sized area.
Fragmentation generates a significant loss of physical continuity between the different areas of the original habitat. It might negatively affect biodiversity by decreasing patch sizes, completely isolating them from each other, and increasing the border effect.
Many species can not survive if they are not in the original habitat. Probably they do not find enough food or shelter, or they are very exposed to predation. So they need to stay in the patch. Most of these species are not even adapted to living on the border of the patches. Eventually, fragmented areas can not support some population species that end by dying because they can not survive for a long time in that reduced place. Patches are not suitable to support too many species.
For these reasons, the connection between islands becomes so important. To allow species to move from one place to the other, interact with other species, reproduce, find food, shelter, avoid predation. In other words, survive. Connectivity is how the territory makes possible individuals flow or genetic flow, between the different tesserae.
3. We get
our
physical traits from our parents
O True
O False
Answer:
This is true.
Answer:
true
Explanation:
it alters the DNA of germ cell
A database is an efficient way to share information because it:
A. is often the most significant source of error in an experiment
B. provides the most precise measurement of a natural object.
C. can be searched quickly for the most relevant observations.
D. can evaluate the validity of a logical argument in a discussion.
Answer:
C. can be searched quickly for the most relevant observations.
Can be searched quickly for the most relevant observations. Therefore, option (C) is correct.
What is a database?A database is a collection of organized data that can be searched, updated, and analyzed to obtain specific information or insights. One of the main advantages of a database is that it allows for quick and efficient searching and retrieval of relevant information.
This is particularly useful for sharing information among multiple users, as it allows for easy access to the same data from different locations and at different times. While a database can be used to store a wide range of information, it is typically not used to evaluate the validity of a logical argument, measure natural objects, or identify sources of error in an experiment.
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3. If muscle contraction were an athletic game, calcium would be the most valuable player. Describe,
using some depth, the roles calcium is serving both inside the muscle fiber and outside at the NMJ.
Answer:
Explanation:
At the NMJ, calcium is responsible for "unlocking" the ligand gated channels, allowing AcH to be released into the synaptic cleft. When AcH binds and the AP moves down the sarcolemma and into the t-tubule, calcium is then released from the sarcoplasmic reticulum into the sarcoplasm. It then binds to the calcium subunit of troponin, causing a confirmational change in tropomyosin, exposing the active sites on actin. This allows the myosin heads to bind, causing muscle contraction.
If individuals from box 1 and box 4 were crossed, what would be the genotypes of the
offspring?
F. all Bb
G. Bb and bb
H. BB and bb
I. BB and Bb
