Sponges live a(n) ____ lifestyle
a. planktonic.
b. infaunal.
c. nektonic.
d. sessile.
e. neustonic
D
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As described in section 46.1 and Fig. 46.6 of your book, natural populations are affected by both density-dependent and density-independent factors
In a population affected mainly by density-dependent factors, would you expect natural selection to favor an r-selected or Kselected life history? __________ What will be an ideal response?
A population of 1,000 individuals with a per
capita growth rate of 1.0 per year in an environment with unlimited resources will number ____ four years later.
a. 1,000 b. 1,400 c. 4,000 d. 16,000 e. 160,000
__________ soils hold the most amount of water.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not a product of the TCA cycle?
A) CO2 B) ATP C) NADH D) acetyl CoA E) FADH2