Its either A or C but im sorry i dont know which one
Well yes, but a dichotomous key can be used to classify just about anything you want.
Hope that helped
Answer: B) It controls the autonomic nervous system and regulates hunger and thirst sensations.
Answer:
An allele (UK: /ˈæliːl/, /əˈliːl/; US: /əˈliːl/; modern formation from is one of two, or more, forms of a given gene variant.