Healthy corals are brightly colored because they _____
A) secrete colorful pigments to attract mates
B) host symbionts with colorful photosynthetic pigments
C) build their skeletons from colorful minerals
D) secrete colorful pigments to protect themselves from ultraviolet light
B
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The function of the parabasal body is to
A) allow for photosynthesis to occur. B) give structural support to the Golgi complex. C) allow for the formation of energy from aerobic respiration. D) give structural support to the endoflagellum.
What cytoskeletal protein is phosphorylated by the M cyclin-CDK complex?
A. microfilaments B. microtubules C. intermediate filaments D. All of the above are correct.
Cytokines
A. play key roles in both specific and nonspecific immunity. B. play key roles in both specific and non-specific immunity and are required for regulation of the immune response. C. are required for regulation of the immune response. D. cause lysis of invading microorganisms.
In capsular staining which of the following steps could result in a halo around the cells that could be mistaken for a capsule?
A) Using India ink to obliterate the background B) Heat fixation of the slide C) Using crystal violet to stain the bacterial cell