Which of the following is not correctly paired?
a. eosinophil: lymphocyte
b. T helper cell: activates B cells
c. natural killer cell: lyses infected cells
d. plasma cell: a subset of B cells
e. B cell: involved in antibody mediated responses
A
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Which of the following is NOT a characteristic
of the arctic tundra? a. a perpetually waterlogged soil b. rapid nutrient recycling c. one of the world's greatest store of carbon d. permafrost e. cool, anaerobic conditions
Which backyard would you predict to have the greatest diversity of birds?
A) one with newly planted seedlings B) one with 5- to 10-year-old trees C) one with 25- to 50-year-old trees D) one with 60- to 100-year-old trees
Proteins are made of ________________________, and the sequence of these determine how the protein will fold up and take shape, which ultimately determines it's function.
Fill in the blank(s) with the appropriate word(s).
Both ATP and NADPH are required for
A. neither the light reaction nor the Calvin cycle. B. the light reaction only. C. electron transport through the thylakoid membrane. D. both the light reaction and Calvin cycle. E. the Calvin cycle only.