________ participate in both innate immunity and the immune response.
A. Natural killer (NK) cells
B. Helper T cells
C. Cytotoxic T cells
D. B cells
E. Memory T cells
Answer: B
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A. short B. flat C. long D. sesamoid E. irregular
This layer is composed of a high concentration of collagen fibers.
A) stratum corneum B) stratum granulosum C) dermis D) hypodermis E) cornified region
What happens when globular proteins are denatured?
What will be an ideal response?
The "dark current" of photoreceptors refers to
A. the exit of K+ out of the cell when light is not hitting the cell. B. the entry of Na+ and Ca2+ into the cell when light is not hitting the cell. C. the entry of K+ into the cell when light is not hitting the cell. D. the exit of Na+ and Ca2+ out of the cell when light is not hitting the cell.