The answer to this question would be: rapid impulse transmission.
By having organ near the head, the brain can process the information faster because the length of the nerve that carries the impulse from organ would be much shorter. The nerve also at lower risk of damage since it was shorter.
But it makes the head very important and damage to the head can cause much more problem than any part of the body.
The magnetosphere interacts with solar flares. It helps to redirect them. Otherwise, the Earth would be greatly heated and human life would become much harder to sustain, as homeostasis would require better cooling mechanisms.
Answer:
d. A smaller body size
Explanation:
The smaller a body size is the larger the body surface area is. Larger body surface area would allow for increase in lost of more excess heat to the environment.
Therefore, hypothetically, one of the obvious adaptation that would be evolved by the rat population that was moved from their previous cold northern tundra climate to a desert environment is a smaller body size. This would enable them in cooling off and preventing over-heating.
There is 10 kcal energy left in the 3rd trophic level.
