The most abundant prokaryotic organism in the ocean is of the ________ genus
A) Pelagibacter
B) Puniceispirillum
C) Roseobacter
D) Prochlorococcus
Answer: A
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Which one of the following is a signal that induces multicellularity of choanoflagellates?
A. the presence of predators in the environment B. the presence of the preferred prey/food source in the environment C. the developmental signal molecules that induce differentiation D. the cell migrations that take place in the developmental phases of growth
Answer the following statements true (T) or false (F)
1. Although land plants, mosses are still tied to water because of their flagellated sperm. 2. The conspicuous green patches of mosses that you see in the woods are mostly sporophytes. 3. The conspicuous green parts of ferns that you see in the woods are mostly sporophytes. 4. Flowers, fruits, and endosperm are defining characteristics of the angiosperms.
Cultures grown from cells of a dissociated tissue are called
a. normal cell lines. b. transformed cell lines. c. primary cell cultures. d. immortal cell lines.
Since malaria results in lysis of red blood cells, one symptom of malaria is
What will be an ideal response?