Define paedomorphosis and allometric growth, and briefly explain how each contributes to the process of
macroevolution. What will be an ideal response?
Paedomorphosis occurs when juvenile characteristics are retained in the adult stage.
Retention of these features could alter an organism’s behavior and ecological habits resulting
in a new species. Allometric growth occurs in a species when there are changes in development. Alteration of
growth rates results in change in the shape of an organism. These shapes may or may not be
adaptive. If they are adaptive, a new species may be born. If they are not adaptive, extinction
of the species may occur.
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The site of implantation is labeled
a. 1. b. 2. c. 3. d. 4. e. 5.
When you drink a large volume of water, the release of __________ by the pituitary gland
__________. a. aldosterone; increases b. aldosterone; decreases c. ADH; increases d. ADH; decreases e. ANP; increases
A survivorship curve is a graph that plots
A) an individual's likelihood of reproducing as a function of age. B) an individual's likelihood of being alive as a function of age. C) the effect of predation on a prey population. D) population growth that is limited by a carrying capacity.
Acidic dyes
A) work best in low pH environments. B) are negatively charged. C) are used for staining negatively charged molecular structures. D) are lipid soluble. E) are negatively charged and work best at low pH.