Mycorrhizae are a:
A) mutualistic association between algae and plant roots.
B) parasitic association between algae and fungi.
C) mutualistic association between plant roots and a fungus.
D) parasitic association between animals and fungi.
Answer: C
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Cholera symptoms are
A. hypotension, tachycardia, and shock. B. copious watery diarrhea. C. acidosis, sunken eyes, and thirst. D. loss of blood volume. E. All of the choices are correct.
Fire in the dry shrublands does not kill the small
bushy plants most probably because a. these plants have a tough protective bark. b. their leaves are very heavy and wet. c. they can resprout from root crowns. d. the Forest Service puts the fires out quickly. e. the fires burn the taller plants and burn out before reaching ground level.
Unikonts are characterized by having:a
two centrioles. b. one flagellum. c. cell walls of chitin. d. micronuclei. e. cell walls of silica.
DNA replication is ____.
A. redundant B. semiconservative C. progressive D. conservative E. repetitive