hormone

What will be an ideal response?


a chemical signaling molecule, usually a protein or steroid, secreted by an endocrine gland or group of endocrine
cells; acts to control or regulate specific physiological processes

Biology & Microbiology

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Consider the global nitrogen cycle depicted in the figure above. What is the limiting portion of the cycle for plants?

A) industrial nitrogen fixation B) nitrogen lost to the atmosphere C) internal nitrogen cycling in the oceans D) nitrogen fixation by bacteria

Biology & Microbiology

Free energy change is equal to zero at equilibrium.

Answer the following statement(s) true (T) or false (F)

Biology & Microbiology

The combination of a virus's genetic material and protein is called the

a. capsid. b. virion. c. nucleocapsid. d. envelope. e. transfer RNA.

Biology & Microbiology

The binding of a neurotransmitter to ligand-gated Cl? channels will cause ____ in the postsynaptic

membrane.

a. depolarization b. hyperpolarization c. repolarization d. apolarization e. depolarization and repolarization

Biology & Microbiology