The two kinds of bone tissue are
(a) compact and loose.
(b) compact and spongy.
(c) dense and spongy.
(d) loose and dense.
(b) compact and spongy.
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When a cell makes a cell membrane bound growth factor that binds to receptors on neighboring cells causing them to proliferate, this is an example of _____.
A. contact-dependent signaling B. autocrine signaling C. direct intercellular signaling D. paracrine signaling E. endocrine signaling
The earliest vertebrates were ________
a. jawless fishes b. tunicates c. lancelets d. placoderms
Which of the following statements accurately reflects the data in Figure 52-3? Say huh?
a. Successful foraging is independent of prey density.
b. Hunting groups of two to three individuals are more effective at low prey densities.
c. Larger hunting groups are more effective at low prey densities.
d. Hunting groups of two to three individuals are more effective at all prey densities.
e. Successful foraging is independent of hunting group size.
The hormone that stimulates the development of the follicles in the ovaries of females is the ________
Fill in the blank(s) with correct word