What is one function of the structure labeled A in the accompanying figure?
a. attachment
b. locomotion
c. protein-making
d. breathing
e. communication
ANSWER: c
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If you are interested in observing a relatively simple community structure in a clear water lake, you would do well to choose diving into _____
A) an oligotrophic lake B) a eutrophic lake C) a relatively shallow lake D) a nutrient-rich lake E) a lake with consistently warm temperatures
The nervous system of fish includes:
a. olfactory pits. b. taste receptors. c. eyes. d. otoliths. e. all of the above.
Which of the following is involved during the process of translation?
a. terminator b. promoter c. ribosomes d. RNA polymerase
Double fertilization produces a triploid tissue from
the union of a. one sperm nucleus and one female nucleus. b. two sperm nuclei and one female nucleus. c. one sperm nucleus and two female nuclei. d. two sperm nuclei and two female nuclei. e. one sperm nucleus and three female nuclei.