In the viable plate count method, a measured sample of a culture is evenly spread across an agar surface and incubated. Each _____ represents one _____ from the sample.
A. cell, cell
B. cell, colony
C. colony, cell
D. species, colony
E. generation, cell
Ans: C. colony, cell
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In the absence of ATP synthase, animal cells would not be able to ____
a. create a proton gradient b. hydrolyze glucose to G3P c. carry out oxidative phosphorylation d. produce ATP e. carry out pyruvate oxidation
Which statement describes the production of offspring by wingless female aphids?
a. Wingless female aphids can produce clones of female offspring by laying eggs. b. When the amount of food available in the environment increases, the number of male offspring increases. c. Wingless female aphids only produce female clones, and these clones are made without the mother laying eggs. d. Different proportions of winged male, non-egg-laying female, and egg-laying female offspring are produced based on the temperature and amount of daylight. e. Environmental conditions do not affect the sexuality of wingless female aphid offspring; sexuality is only determined genetically.
Which of the following are considered fossils?
A) Footprints or other impressions preserved in stone B) Mineralized bones C) Animals frozen in ice or preserved in amber D) All of these
In a chemical synapse, what is the name of the gap between the transmitting and receiving neurons?
What will be an ideal response?