<span>B. Animals must switch between ectotherm and endotherm methods.
</span>The hypothalamus in the brain, is responsible for monitoring the body temperature. The hypothalamus causes the body to react differently when the body is too hot or if the temperature gets too cold. <span>The normal body temperature is 37'. The hypothalamus triggers the receptors such as sweat glands and body hair muscles in the body.The sweat glands open up when the body is too hot and secrets sweat until the temperature is regulated again. Similarly in cold conditions the body hair muscles pull the hair upright because standing hair absorbs more heat until the falling body temperature returns to normal.</span>
I am not entirely sure about this. So maybe my response can help you find the answer a little better if my answer is not entirely right?
These last three questions are referring to everything you just worked on. So all you would have to do is refer back to your previous answers. Recall that the titles of the "part 1, 2, and 3" are titled "crossing beak color and tail-feather length", "crossing beak color and feather color", and "mapping tail-feather length and feather color".
1.List the distances between each pair of genes:
beak color and tail-feather length: 20 MU
beak color and feather color: 16 MU
tail-feather length and feather color: 4 MU
2.Which two alleles are the farthest apart?
(the one that is 20 MU apart) Y and L
3.Which two alleles are the closest together?
(the ones that are 4 MU apart) L and B
Answer:
The brain cells contain DNA molecules, but the skin cells do not.
The skin cells contain DNA molecules, but the brain cells do not.
The brain cells and skin cells both contain DNA molecules, and their DNA molecules contain the same genetic information.
The brain cells and skin cells both contain DNA molecules, but their DNA molecules contain different genetic information.
HOPES THIS HELPS
Many animals, like the arctic fox, adapt to their surroundings. When there is snow, the arctic fox have white fur to blend in to their white environment--this helps them catch their prey and also avoid predators. The same thing happens in the summer, when they have brown fur.
Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell. The two main types of nucleic acids are deoxyribonucleic acid (DNA) and ribonucleic acid (RNA).
Hope this helps
