Which of the following terrestrial ecosystems has the highest rate of primary productivity
A) tropical rainforest
B) prairie
C) tundra
D) marsh
E) temperate rainforest
Ans: A) tropical rainforest
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Most of the drugs used to treat protozoan infection have insignificant side effects; because protozoa are prokaryotes, the potential for drug action on host cells and tissues is less than it is when targeting bacteria.
Answer the following statement true (T) or false (F)
One strain of rII- phage has a deletion in the rII region, another has a point mutation in the rII region. When E. coli K(?) cells are infected with either rII- phage (not both) no plaques form. When E. coli K(?) cells are infected with both rII- phage simultaneously plaques do form. Why do plaques form when E. coli K(?) cells are infected with both types of rII- phage simultaneously?
A) Recombination between the two phage genomes resulted in a wild-type phage. B) The two phage have mutations in different rII genes and their genomes complement each other. C) A protein made by the deletion phage can repair the DNA of the phage with the point mutation. D) Bacteria can survive infection with one phage, but they cannot survive infection with two phages.
Adipose tissue is mostly:
What will be an ideal response?
During the prep reaction, ___receives the C2 acetyl group that remains
Fill in the blank(s) with the appropriate word(s).