In both sexes, which of the following glands monitors and causes the release of hormones that control reproductive organ development and functioning?
a. pituitary gland
b. Sertoli gland
c. hypothalamus
d. pancreas
c. hypothalamus
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In addition to causing skin cancer later in life, ultraviolet light destroys the B vitamin folate. Folate deficiencies in pregnancy may result in birth defects
Which of the following do you think is a stronger selective pressure for high skin pigmentation in high UV environments? A. skin cancer prevention B. birth defect prevention C. both are equal
The founder effect
A. occurs when large groups of individuals leave their home population and establish new settlements, mating only among themselves. B. occurs when small groups of individuals leave their home population and establish new settlements, mating only among themselves. C. occurs when many members of a population die, resulting in a great loss of genetic diversity. D. occurs when many members of a population reproduce causing too much genetic diversity within the population. E. does not occur in nature
The amino acids we cannot produce within our bodies that are necessary for good health are termed ________ amino acids.
Fill in the blank(s) with the appropriate word(s).
The most important factor that determines where major ecosystems are located on the globe is ______ .
a. culture b. environment c. climate d. all of the above