A cell type that interacts with both the humoral and cell-mediated immune pathways is a _____
A) plasma cell
B) cytotoxic T cell
C) natural killer cell
D) CD8 cell
E) helper T cell
Answer: E
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Why must mosses live in moist environments?
A. Because they depend on water to reproduce B. Because they are pollinated by fish and aquatic insects C. Because they grow as a mat D. Because they lack a waxy outer layer
When one cell goes through cell division, it produces ________.
A. four identical cells B. two different cells C. two identical cells D. four different cells
Human pathogens are classified as
A) thermoduric. B) thermophiles. C) mesophiles. D) hyperthermophiles. E) psychrophiles.
________ are a set of criteria used to identify and link a specific microorganism as the etiologic agent of a new infectious disease.
Fill in the blank(s) with the appropriate word(s).