Hormones are released from one cell and act on other cells in distant organs and are thus an example of
A. intercellular signaling.
B. paracrine signaling.
C. autocrine signaling.
D. contact-to-contact signaling.
E. endocrine signaling.
Answer: E
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Laboratory simulations provide indirect evidence that organic compounds such as __________ and
__________ self-assemble spontaneously under conditions like those thought to have prevailed on the early Earth. Fill in the blank(s) with the appropriate word(s).
All of the following are adaptations of black-tailed prairie dogs except:a
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The __________ contains the greatest volume of ocean water
a. oceanic province b. intertidal zone c. euphotic zone d. neritic province e. limnetic zone