Follow the instructions in the procedure for identifying hydrogen bonds. How many hydrogen bonds are there between adenine and thymine?
a. none
b. one
c. two
d. three
c
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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.
Which of the following is in the coding region of a gene?
A. Trailer B. Leader C. Promoter D. None of the choices are correct.
Which lineage of Cnidarians exist primarily as cube-shaped medusae, are active swimmers, and produce one of the deadliest toxins made by animals?
a. Hydrozoa b. Trematoda c. Cubozoa d. Anthozoa
A wolf that feeds on moose and elk would be classified within which trophic level?
A. detritivore B. herbivore C. secondary carnivore D. primary carnivore E. primary producer