In some cases, viral infections of animals may __________.
A) cause cells to form capsules
B) cause cells to produce invasive enzymes such as hyaluronidase and collagenase
C) cause cells to produce endotoxin
D) cause cells to lose contact inhibition
Ans: D) cause cells to lose contact inhibition
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The species concept that relies most heavily on the criterion that species are evolutionarily independent units that are isolated by gene flow is ________
A) the morphospecies concept B) the phylogenetic species concept C) the biological species concept D) This criterion is common to all of these concepts.
The organism that Mendel used for his experiments was
A) E. coli. B) the fruit fly. C) maize. D) yeast. E) the pea plant.
The egg cells of a horse contain 32 chromosomes. how many chromosomes are in the horses liver cell?
a. 16 b. 32 c. 64 d. 128
ATP is the abbreviation for the chemical adenosine triphosphate, which is the molecule that cells generate and use for __________ .
Fill in the blank(s) with the appropriate word(s).