Members of the genus Mycoplasma are pleomorphic and stain Gram-negative because they
A) lack cell walls.
B) have sterols in their cytoplasmic membranes.
C) lack cytoplasmic membranes.
D) have mycolic acid in their cell walls.
E) have a rudimentary cell wall.
A
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A plant will begin flowering in response to changes in length of daylight, temperature, and light quality. This is an example of which unifying principle of life?
A. Plants conduct photosynthesis. B. Living organisms maintain homeostasis. C. Living organisms interact with their environment. D. Living organisms grow and develop. E. Populations of organisms evolve from one generation to the next.
Franklin worked closely with
a. Wilkins. b. Watson. c. Crick. d. Chargaff. e. none of these
Why and when is asexual reproduction advantageous in plants?
What will be an ideal response?
A child has a sore throat, headache, high fever, and a cough. A couple of days later there are white spots with a red margin on the mucous membranes of the mouth. These signs and symptoms are consistent with infection with
A. rhinovirus. B. measles virus (rubeola). C. rubella virus. D. parainfluenza virus. E. mumps virus.