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Biology, 30.10.2019 23:31 yaniravivas79

Hormones are
a. produced only in response to environmental stress
b. chemical signals between cells, transported in blood or hemolymph
c. signals that must interact with dna in order to be effective
d. are all under the control of the pituitary gland
e. always proteins

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Hormones are
a. produced only in response to environmental stress
b. chemical signals b...
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