A population that is growing exponentially in the absence of limiting factors can be illustrated by which shaped curve?
a. S-shaped
b. J-shaped
c. O-shaped
d. bimodal
e. skewed
ANSWER: b
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How does vernalization alter the genetic material of plants? In other words, how does the genetic material of some plants change after exposure to the winter months? Select all correct choices
A. through chromatin remodeling B. through mutations in certain genes C. through DNA methylation D. through RNAi
The major groups of fungi are assigned names on the
basis of a. feeding structures. b. mode of nutrition. c. ecological role. d. reproductive structures. e. when they appear in the fossil record.
Which of the following cell types produce antibodies?
a) t- cells b) dendritic cells c) b- cells d) natural killer cells
During the prep reaction, ___receives the C2 acetyl group that remains
Fill in the blank(s) with the appropriate word(s).