My hypothesis is that the female shark reproduced asexually since she was left alone in her own tank with no male sharks around.
One of the signs that sleep is necessary is that all living creatures are harmed by lack of sleep. Correct answer: A Sleep serves important evolutionary functions for all animals, because sleep helps animals consolidate memories and learn. Animals sleep according to how much they eat – animals that eat food with a lower caloric density sleep less than others. However, lack of sleep and if the deprivation is long enough it can kill animals.
Coronary heart disease, Peripheral disease & Aortic disease. Hope this helps! :)
A. Lungs because thats your respiratory system
What is does is elevates levels of cortisol, which causes overeating
~Riley