________ is when a vesicle fuses to the plasma membrane and discharges its contents to the extracellular environment
A) Endocytosis
B) Exocytosis
C) Extracytosis
D) Entrocytosis
E) Phagocytosis
Answer: B
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____________________ markedly enhances the actions of cell-killing cells
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Which statement correctly describes hypersensitivity?
A. Hypersensitivity can range from mild to severe. B. Severe hypersensitivity may cause anaphylaxis. C. Hypersensitivity involves an overreaction of the immune system to an allergen. D. All of these statements correctly describe hypersensitivity.
Which of the following are associated with the sense of touch?
A) Fibroblasts B) Keratinocytes C) Melanocytes D) Dendritic (Langerhans) cells E) Tactile (Merkel) cells
Which vertebra does not have a body?
A) last lumbar B) axis C) atlas D) last cervical