Using a microscope, you observe an amoeba moving toward a food source. This is an example of
A) reproduction.
B) cellular structure.
C) metabolism.
D) growth.
E) responsiveness.
E
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Which of the following tests can be performed to differentiate the two subspecies of Neisseria elongata and glycolytica?
a. Catalase b. Nitrate reduction c. DNase d. Growth in nutrient broth
Conservation biology is an interdisciplinary science that focuses on ____
a. saving endangered species b. sequencing the DNA of all species on Earth c. cataloging endemic plant species d. researching trigger species e. maintenance and preservation of biodiversity
A bacterial cell has a nonsense mutation that prevents it from producing a functional sigma subunit for RNA polymerase. Inability to synthesize a functional sigma subunit would have the most direct effect on
A. translation initiation. B. transcription elongation. C. transcription initiation. D. transcription termination. E. translation termination.
During the ______, the sun's direct rays fall on equator, and the length of day and night is equal everywhere.
A. June equinox B. September solstice C. June solstice D. March and September equinox E. June and December solstice