Which of the following statements best exemplifies the principle of selective pressures?
a. the environmental pressures felt by selection
b. the environmental pressures felt by populations
c. the environmental pressures felt by species
d. the environmental pressures felt by organisms
Answer: d. the environmental pressures felt by organisms
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Which of the following is not associated with mRNA processing in eukaryotes?
A) addition of a 5' methyl guanosine cap B) 3' polyadenylation C) removal of introns D) removal of exons
A scientist is investigating a hormone response in rose bush stems by removing the apical meristems of the main stems. What is the most likely result of this experiment and what hormone is responsible?
A. New apical buds will develop under the influence of auxin. B. Larger, deeper roots will form under the influence of cytokinin. C. More leaf buds will appear along the main stems under the influence of auxin. D. Flowers will turn yellow and fall off under the influence of auxin. E. Lateral buds will develop under the influence of cytokinin.
The supralittoral zone is:
a. the area below the low tide mark. b. the area above the high tide mark. c. the area between low and high tide marks. d. the area under the rocks.
What is the function of Anti-Mullerian hormone (amh)?
a. to inhibit the development of the wolffian duct b. to inhibit the development of the mullerian duct c. to inhibit the development of the gonadal ridge d. to cause the development of the mullerian duct