Homologues of the Sec protein translocation system are found in bacteria, eukaryotes, and archaea.
Answer the following statement true (T) or false (F)
True
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A species that is considered to be the “base” of the community because of its great influence is called which of the following?
a. rock species b. head species c. foundation species d. master species
Growth factors
A. are inorganic. B. contain elemental oxygen. C. cannot be synthesized by the organism. D. are synthesized by the organism. E. All of the choices are correct.
Acquired characteristics
A. are passed on to the offspring. B. are caused by mutations. C. result in natural selection. D. are obtained after fertilization.
One distinctive feature of the coryneform bacteria is
a. the presence of mycolic acids in the cell wall. b. snapping division, which can give rise to V-shaped cells. c. the presence of resting bodies called conidia. d. resistance to high levels of radiation.