<span>The different adrenal hormones show selectivity for different types of adrenergic receptors. This may be because the chemical structures of the adrenal hormones are such that binding is biochemically easier for the hormones at the receptors to which they show a selective affinity.</span>
Tough cuticle made of proteins and chitin.
It’s all of them because they all end in autotrophs
Answer:
Is there a question to this?
Explanation:
