tylerroberts710 tylerroberts710

11-05-2016
Biology

Answered

Vertebrates have an endocrine system of glands that secrete _____.

a

hormones

b

enzymes

c

proteins

d

none of the above

Verified Answer :

Extremum Extremum

11-05-2016

Hormones because if you think about it. Vertebrates must have backbones and mammals have them. And, humans are basically mammals. And the glands secrete hormones.

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