In general, less complex animals are:
a. more likely to rely on specialized mouth parts for di...
Biology, 19.09.2019 18:30 LMixer5sosCR7Fan
In general, less complex animals are:
a. more likely to rely on specialized mouth parts for digestion.
b. more likely to perform extracellular digestion than intracellular digestion.
c. more likely to have a gastrovascular cavity than to have a digestive tract.
d. more likely to have two body openings than to have one body opening.
Answers: 2
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Keeping in mind the life cycle of bacteriophages, consider the following problem: during the reproductive cycle of a temperate bacteriophage, the viral dna inserts into the bacterial chromosome where the resultant prophage behaves much like a trojan horse. it can remain quiescent, or it can become lytic and initiate a burst of progeny viruses. several operons maintain the prophage state by interacting with a repressor that keeps the lytic cycle in check. insults (ultraviolet light, for example) to the bacterial cell lead to a partial breakdown of the repressor, which in turn causes the production of enzymes involved in the lytic cycle. as stated in this simple form, would you consider this system of regulation to be operating under positive or negative control?
Answers: 1
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Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material
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The spermists believed that: the male made the only hereditary contribution to the offspring the male and female traits were blended in the offspring the female made the only hereditary contribution to the offspring the male and the female made equal contributions to the next generation
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