Answer: you can infer that I don’t give a uriruru
Can someone help with this?
Answer:
a primary oocyte contains 46 chromosomes, while a secundary oocyte contains 23 chromosomes
Osmosis, where sea water and fresh water on different sides of a permeable membrane will end up "brackish" with equal content over time is an example of what?
A) Passive transport
B) Active transport
C) Transitive chemistry
D) A lipid bilayer
I know it’s probably between A and B, but I have a hard time telling the difference.
Answer:
A) Passive transport
Explanation:
The answer for the question is A
What does codominance mean in genetics?
Both alleles are dominant.
O Both alleles are recessive.
O The alleles are neither dominant nor recessive.
O Each allele is both dominant and recessive.
Answer:
Yes each abele is both dominant and recessive
Explanation:
Because it’s true
why did mendal use peas in his experiment
Answer:
He chose peas because they had been used for similar studies, are easy to grow and can be sown each year. Pea flowers contain both male and female parts, called stamen and stigma, and usually self-pollinate.
Explanation:
Hope this helps!
Find out what the contractile vacuole in a Paramecium does and why
can someone help me please?
It is projected that an increase in carbon dioxide levels in the atmosphere will MOST LIKELY lead to _____.
Select one:
a. lower-than-average hurricane rates
b. higher-than-average ice levels in arctic
c. higher-than-average sea levels
d. lower-than-average ocean temperatures
Changes in global temperature and other Choose... conditions have effects on organisms and on the clades to which they belong. The emergence, growth, and extinction of a large clade, such as the dinosaurs, is an example of a Choose... pattern. This pattern includes Choose... extinction, which tends not to disturb ecosystems, as well as Choose... extinction, in which ecosystems change drastically.
Answer:
larger macroevolutionary patterns.
extinction, in which ecosystems change drastically
Explanation:
The emergence, growth, and extinction of a large clade, such as the dinosaurs, is an example of larger macroevolutionary patterns. This larger macroevolutionary patterns occur due to climate change. Extinction of organisms in which ecosystems change drastically that leads to unfavourable environmental conditions which decreases the population to the extinction of organisms.
"I don't get it. Why do I need to learn about meiosis to understand about variation in a species?" moaned Trina. How would you explain to her what the relationship is between the two?
Answer:
The cell division that halved the no. of chromosomes is the meiosis. The meiosis takes place during formation of gametes (eggs & sperms) in higher organisms. eggs & sperms posses only one chromosomes of each pair of chromosomal set. (2n➡️n).
When these gametes fuse to form the zygite, the chromosomes become n+n➡️2n again.
Many of the D-amino acids found in nature have been discovered in bacterially produced peptides that have antibiotic properties. Bacteria secrete these peptides into their environments to kill competitor bacteria and thereby gain a selective advantage. Given your answer to part (a) of this question, what potential advantages might D-amino acids confer to a secreted peptide toxin
Answer: D-amino acids are less likely to be recognized by proteolytic enzymes thereby they are not degradated.
Explanation:
Peptides are a type of polymers formed by joining several amino acids by means of peptide bonds. They are responsible for a large number of important cellular functions for the organism. Amino acids are thus the monomers that make up peptides and consist of an amino group (-NH2) at one end of the molecule and a carboxyl group (-COOH) at the other end.
Antibiotics are chemical substances produced by a living being (although they can also be synthetic derivatives made in laboratories), which kill or prevent the growth of certain kinds of sensitive microorganisms and are generally drugs used in the treatment of bacterial infections.
All amino acids, except glycine, are stereoisomers which means that there are nonoverlapping mirror images of their structure. These are labeled L (left-handed) and D (right-handed) to distinguish mirror images. A mirror image, for example, compares a right foot with a left foot. They are similar, but not exactly the same, they are like mirror images of each other. However, we could not, for example, put a right shoe on a left foot and vice versa. The same analogy applies to stereoisomers, they are similar but not superimposable, which means that not all compounds will act in the same way in an L or D molecule. For some reason, the amino acids that make up the proteins in human bodies are all L-amino acids.
To distinguish an L-amino acid from a D-amino acid, we must look at the α-carbon, which has four substituents forming a tetrahedron. then we must identify the hydrogen bonded directly to this carbon. In this way they are numbered and following the numbering order, they are classified as L or D.
Bacteria that secrete D amino acids kill other bacteria in the environment that might compete with them for resources, because they have antibiotic properties. These D amino acids are not usually recognized by proteolytic enzymes in organisms that degrade peptides or proteins. So the amino acid remains in the environment fulfilling its function, which is an antibiotic function to fight against other bacteria. Peptide toxins also fulfill this function, however, if they are destroyed by proteases.
El pelaje negro de los borregos se debe a un alelo recesivo n frente a su alelo N que determina el pelaje blanco. Si cruzamos un individuo homocigótico blanco con un homocigótico negro, ¿de qué color serán los descendientes de la primera generación filial? GENOTIPO-FENOTIPO
Answer: Los descendientes de la primera generación filial tendrán un genotipo Aa y un fenotipo color blanco.
Explanation:
Un gen es un segmento de ADN que codifica para una proteína. Para cada gen, hay distintas versiones, conocidos como alelos. Por ejemplo, el gen que codifica para el pelaje tiene los alelos para el color blanco y para el color negro. Considerando que los organismos diploides tienen dos copias de cada gen (dos alelos), un alelo dominante solo necesita una copia para expresarse. Mientras que un alelo recesivo, necesita dos copias.
En este ejemplo, el borrego homocigota blanco tiene un genotipo (conjunto de genes) de AA ya que el color blanco es dominante y al ser homocigota indica que ambos alelos son iguales. El borrego homocigota negro tiene un genotipo de aa ya que se necesitan dos alelos recesivos para mostrar ese fenotipo (características visibles).
Los borregos producen gametos, los cuales son células sexuales (espermatozoide u óvulo) haploides, es decir que solo poseen un alelo de cada gen. Entonces el borrego AA solo produce gametos con genotipo A, mientras que el borrego aa solo produce gametos con genotipo a. Estos gametos son los que se cruzan, es decir que la descendencia solo puede tener un genotipo Aa (con un alelo de cada padre)
El genotipo Aa posee un alelo dominante A (que codifica para el color blanco) que enmascara los efectos de el alelo recesivo a (que codificaría para el color negro) Entonces, los descendientes de la primera generación filial tendrán un genotipo Aa y un fenotipo color blanco.
Amoebas make exact copies of themselves. Therefore, they reproduce
A. asexually buy the process of MEIOSIS
B. sexually by the process of MITOSIS
C. sexually by the process of MEIOSIS
D. asexually by the process of MITOSIS
Answer:
D.
Explanation:
You can rule out B and C because offspring produced sexually are not identical to their parents. The amoebas reproduce by binary fission, which is a form of asexual mitosis.
Answer:
D. asexually by the process of MITOSIS
Explanation:
Mitosis is a form of asexual reproduction in simple living organisms. The outcome of each cell cycle is two identical cells. Mitotic checkpoints happen at certain stages of mitosis to ensure that each cell receives the same amount of DNA.
in which country green rain fell upon?
Answer:
In India ,Kolkata green rain fell.
I hope it helps
have a great day
[tex]#Liliflim[/tex]
Answer:
The country in which green rain fell upon is
India.(kolkatta)
Question 2 of 10
How is a scientific theory developed?
A. One scientist proves his hypothesis with an experiment.
B. A single experiment is performed once.
C. An experiment is repeated several times.
D. Many different experiments are performed and repeated.
SIE
Explain one environmental condition that drove organism evolution
Answer:
Weather is one, but there are thousands of factors that contributed to it.
Explanation:
Which organism, roadrunner or the owl, competes more for its food?
Support your answer with evidence from the food web.
The roadrunner and the owl are both predators and compete for similar prey, such as small mammals, birds, reptiles, and insects. However, the extent to which they compete for food depends on various factors such as their habitat, size, behavior, and hunting techniques.
What do you mean by predators ?
Predators are animals that hunt, kill, and consume other animals (known as prey) for their sustenance. Predation is a common form of interaction between different species in many ecosystems. Predators come in many different forms, such as mammals, birds, fish, insects, and reptiles.
Predators are typically characterized by certain physical and behavioral adaptations that help them hunt and capture prey. For example, many predators have sharp teeth, claws, or beaks that are used to kill and consume their prey. Others may have specialized hunting techniques or strategies that make them highly effective predators.
The roadrunner and the owl are both predators and compete for similar prey, such as small mammals, birds, reptiles, and insects. However, the extent to which they compete for food depends on various factors such as their habitat, size, behavior, and hunting techniques.
Roadrunners are known to be opportunistic hunters and can feed on a wide range of prey items. They are ground-dwelling birds and use their speed and agility to catch their prey. Roadrunners are also known to eat eggs and young of other birds, including owls.
Owls, on the other hand, are nocturnal predators that are known for their exceptional hearing and vision, which enables them to hunt in low light conditions. They are also skilled hunters and can catch a variety of prey, including rodents, small mammals, and birds.
Therefore, both roadrunners and owls are capable of competing for food, but the level of competition depends on the availability of prey, habitat, and other factors. In general, the competition between these two species is likely to be limited, as roadrunners are diurnal (active during the day) and owls are nocturnal (active at night).
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 The graph below shows how the level of carbon dioxide in the atmosphere has changed over the last 150,000 years Which environmental factor has been most recently affected by these changes in carbon dioxide level?
1. light intensity
2. size of consumers
3. types of decomposers
4.atmospheric temperature
The diagram below represents the time a cell spends in the two main phases
of the cell cycle. In which phase does a cell spend less time?
A. Interphase
B. R phase
C. M phase
O
D. Prophase
The cell spends less time in the M phase, also known as the mitotic phase, where the actual division of the cell takes place.
What does happen during M phase?During this phase, the cell undergoes mitosis or meiosis, depending on the type of cell, resulting in the formation of two daughter cells. In contrast, the interphase is the longest phase of the cell cycle, where the cell grows and carries out its normal metabolic activities.
The R phase, also known as the S phase, is a sub-phase of interphase where DNA replication occurs. Prophase is the first phase of mitosis and is relatively short compared to the M phase as a whole.
During prophase, the chromosomes condense, the nuclear envelope breaks down, and the spindle fibers form. In metaphase, the chromosomes align at the metaphase plate.
During anaphase, the sister chromatids separate and move towards the opposite poles. Finally, during telophase, the spindle fibers disassemble, the nuclear envelope reforms, and cytokinesis occurs, resulting in the division of the cytoplasm and formation of two identical daughter cells.
In terms of the amount of time spent in each phase, interphase is the longest, accounting for about 90% of the cell cycle. M phase, on the other hand, is relatively short, accounting for only about 10% of the cell cycle. Therefore, a cell spends less time in M phase than in interphase.
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Which cells are not locked into becoming one particular kind of cell and are capable of developing into specialized tissues (example; nerve cells, muscle cells and skin cells) ?
Explanation:
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What was the environmental factor MAINLY responsible for the changes which were seen in the graph in Figure 3?
Answer:
my answer
Explanation:
the sun is rising in noon and at it's very height, carbon-dioxide levels are LOW because the more sunlight plants get, THE MORE PLANTS CONVERT SUNLIGHT WITH CARBON DIOXIDE INTO OXYGEN AND REMOVE CARBON DIOXIDE FROM ATMOSPHERE
Answer:
it seems that there aren't any factors that can really support it but i would say that the percent seems to lower because of the temp change
Explanation:
Francis was recording plant heights for an experiment. Each time that she took a measurement, she wrote it down. Then, she measured the plant again and compared the new measurement to the one that she had recorded in her notebook. What was she most likely trying to do
revise her hypothesis
check her memory
make the data more valid
form a conclusion
revise her hypothesis I guess because
she recorded the experiment again and again and then wrote it so she could get more knowledge about the experiment
Answer:
A
Explanation:
edge 202
Which type of vascular tissue is responsible for transporting water from the roots to the rest of the plant?
Answer:
Xylem tissue
Explanation:
Xylem, plant vascular tissue that conveys water and dissolved minerals from the roots to the rest of the plant and also provides physical support. Xylem tissue consists of a variety of specialized, water-conducting cells known as tracheary elements.
If you could genetically engineer any species of organism, what would it be? Would it be a unicorn? A
dog-cat hybrid? Your own personal pet giant? Choose any species--real or not--that your imagination
desires!
Write a paragraph describing your species, what it looks like, and where it lives. Think of any inherited
traits the species has that might help it survive in its environment. Thinking of these traits now can help
you come up with allele combinations in the next step. Now describe your species in the answer space.
Answer:
the species I would combine would be a trapdoor spider and a eel yeah its a unusual mix but at the same time it would be interesting to see because image a eel having 8 legs and spider fangs and armored skin it would most likely also be twice the size of a normal eel or even might have a mutation but who knows
The alteration of the natural gene is called genetic engineering. Genetic engineering helps to cure various diseases, these diseases are as follows:-
ADA syndromeRNAi interferenceGenetic engineering help to make the new organism with the crossing of the two new species.
If I had to choose the an organism I would choose CAT as they are very familiar and easy to work on.
The alleles of the different organisms help to make a new character.
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How can a mutation get into a population?
Answer:
Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.
Explanation:
Answer:
Some mutations do not result in changes in the amino acid sequence of the encoded protein and can be described as silent mutations. Other mutations result in abnormal protein products. Mutations can introduce new alleles into a population of organisms and increase the population's genetic variation.
Explanation:
Read the following selection and answer the question. On a September day in 1999, people began to notice that Lake Jackson in the Panhandle region of northern Florida was shrinking. Within a few days, it was almost gone. A sinkhole had opened beneath the lake and drained it, along with all of its inhabitants including fish and alligators. As aquifers lose water, rock and soil layers can become weaker and less capable of supporting overlying layers of earth and any human structures built upon them. In such cases, the land surface above may subside, or sink. Sometimes subsidence can occur locally and suddenly in the form of sinkholes, which are areas where the ground gives way with little warning. Once the ground subsides, soil becomes compacted, losing the porosity that enabled it to hold water. Recharging a depleted aquifer may therefore become more difficult. Sinkholes occur when?
Answer:
Sinkholes occur when water from the groundwater has been removed in excess.
Explanation:
Sinkholes are empty spaces in the ground that occur due to the landslide of large volumes of land, creating craters of different sizes. This landslide takes with it everything that is on top of it, such as houses, animals, streets and even entire buildings. While these holes can occur due to engineering flaws, the most common reason is the excessive use of groundwater, which creates an empty space in the interior of the soil and causes the earth to sag.
What is true of an "Autotroph" ?
A) Feed on another organism
B) Are consumers
C) Needs another food supply
D) Gets it's energy from non-living resources.
Answer:
D gets it's energy from nonliving resources
Answer:
D) Gets it's energy from non living resources
Example: Plants
dos semejanzas y tres diferencias, entre los postulados griegos, y los postulados de Van Helmont y Needham de las teorías abiogenistas
Which part of the cell membrane prevents the cell from dissolving in water?
Answer:
Lipid molecules
Explanation:
The molecules that prevent cell membranes from dissolving are called lipid molecules most abundantly known as phospholipids.
The outcome of protein synthesis is ______.
A. A glucose molecule
B. An mRNA molecule
C. A protein
Answer:
C. A protein
Explanation:
The outcome of protein synthesis is a protein.
The process of protein synthesis is crucial to cellular function. Protein synthesis is the procedure used by cells to generate proteins. Thus, option C is correct.
What is the role of protein synthesis in the cell?Protein synthesis, sometimes referred to as protein biosynthesis, is an essential biological process that occurs inside of cells to replace lost proteins (due to export or degradation) with new proteins.
Proteins have a wide range of vital biological functions, including those as enzymes, hormones, and structural proteins.
Cells are made of proteins, and the word “synthesis” simply means “to make.” Thus, the process of producing proteins is known as protein synthesis.
Creating a polypeptide, or protein consisting of a chain of amino acids, is the sole goal of protein synthesis. Keratin, a protein, is produced in the cells of the hair follicle.
Therefore, The outcome of protein synthesis is a protein.
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what do ribosomes do in animal cells
two examples of heat energy
Answer:
sun and electric heater
Explanation:
sun is the biggest source of heat energy
electric heater is also an example of heat energy as it warms us
1. A cup of fresh coffee is very hot because the water particles are vibrating very rapidly giving the coffee heat energy.
2. A fire is a chemical reaction that is releasing energy as bonds are being broken, this energy is felt as warm or hot and is a release of heat energy.
