Which of the following is the role of calcium-dependent protein kinases?
A. Receptor molecule.
B. Affector molecule.
C. Messenger molecule.
D. Effector molecule.
E. All of the choices.
D. Effector molecule.
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Trichonympha is a unicellular flagellated protist that lives within termites and allows the termite to be able to "digest" wood. Trichonympha is classified as
A. a detritovore. B. a heterotroph and autotroph. C. an autotroph. D. a heterotroph and detritovore. E. a heterotroph.
Which of the following organs do NOT supply
enzymes or other compounds that aid the digestive process in the small intestine?
a. pancreas b. liver c. gallbladder d. large intestine e. all of these organs supply enzymes or other compounds that aid in the digestive process in the small intestine
The carrying capacity of an environment is determined by
a. the net rate of reproduction of the female members. b. an S-shaped curve. c. the predation rate on the females. d. diseases suffered by both sexes. e. the sustainable supply of resources it provides.
A transposable element composed of an antibiotic resistance gene, a recombinase gene, and inverted repeats is identified in a bacterial genome. This element can be any of the following except ________.
A. a composite transposon B. an integrated conjugative element C. an insertion sequence D. a unit transposon