The essential protective role for T cell immunity is protection from
A) viruses.
B) extracellular pathogens.
C) bacteria.
D) intracellular pathogens.
Answer: D
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In which part of the chloroplasts are the Calvin cycle enzymes located?
A. stroma B. thylakoids C. grana D. envelope E. cristae
The least inclusive of the taxonomic categories
listed here is a. family. b. phylum. c. class. d. order. e. genus
The evolution of flower symmetry is best explained by
A. a new gene mutation. B. the modification of an existing gene for a new function. C. homoplastic convergence. D. gene duplication and divergence. E. conserved genes.
You are given a box of bones which includes a tall narrow pelvis and a foot with non-aligned toes
Which statement would not be supported by these bones? a. The animal could brachiate. b. The animal was a hominoide. c. The animal was in suborder Arthopidea. d. The bones belonged to a knuckle walker. e. The bones belonged to a quadrupedal organism.