Hormones known as "catecholamines" are
A) lipids.
B) peptides.
C) steroids.
D) derivatives of the amino acid tyrosine.
E) derivatives of reproductive glands.
Answer: D
Hormones known as "catecholamines" are
A) lipids.
B) peptides.
C) steroids.
D) derivatives of the amino acid tyrosine.
E) derivatives of reproductive glands.
Answer: D