Which of the following correctly describes the interactions between antigens, class I MHC molecules and T cells?
A) Antigens bound to class I MHC molecules and interact with helper T cells
B) Antigens bound to class I MHC molecules and interact with killer T cells
C) both a and b
D) neither a nor b
B
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Coastal winds that shift from night to day illustrate
A. convection. B. conduction. C. radiation. D. all about equally
Net primary productivity
a. is the rate at which producers manufacture chemical energy through photosynthesis b. is the rate at which producers use chemical energy through respiration c. is the rate of photosynthesis plus the rate of respiration d. is the rate at which producers use photosynthesis to produce and store chemical energy e. is the rate at which producers use photosynthesis to produce and store chemical energy minus the rate at which they use this energy through aerobic respiration
A reserve is a known deposit of energy material that is currently too expensive to extract using today's technology.
Answer the following statement true (T) or false (F)
The Hadley cell is referred to as a(n) ____________________ cell because it is driven by energy from the Sun as warm air rises and cold air sinks
Fill in the blank with correct word.