The primary way that genes control the activities of a cell is by means of
A. hormones.
B. electrical impulses.
C. ATP.
D. enzymes.
D. enzymes.
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The disposal of garbage or sewage in the ocean is known to cause the sudden growth of sulfate reducers
Indicate whether the statement is true or false.
Gymnosperms that produce resin, form male and female cones, and consist of tracheidbased xylem are classified as:
A. conifers. B. ginkgos. C. cycads. D. gnetophytes.
The cells of the anterior lobe of the pituitary gland secrete many hormones. From the following list select the hormone that is NOT secreted from the anterior lobe of the pituitary.
A. growth hormone B. prolactin C. follicle-stimulating hormone D. melanocyte-stimulating hormone E. antidiuretic hormone
A tropical biome with grasses as primary producers and scattered trees adapted to prolonged dry spells is known as a:
a. warm desert b. savanna c. tundra d. taiga e. chaparral