Melatonin I believ eis your answer. Not melanin like the pigment in our skin but melanin the sleep hormone.
The answer u r looking for is- D* failure of the immune system to distinguish self from nonself. Hope I’ve helped ;)
Answer:
in a population of lizards , only the lizards with the longest tails survive and reproduce, what type of selection is described?
This is a natural selection as it entails the fittest lizards survives by passing the gene of its survival to its offspring hereby enables it not go into extinct
Explanation:
Answer:
The answer is Lungs
Explanation:
The organs of the excretory system are also parts of other organ systems. For example, your lungs are part of the respiratory system. Your lungs remove carbon dioxide from your body, so they are also part of the excretory system.
