One example of a simple reflex involves the
a. contraction of a muscle when it is stretched.
b. conscious message to move part of the body.
c. receptor, the brain, and the effector.
d. muscle action in a salute when a noncommissioned serviceman sees an officer.
e. contraction of an antagonistic muscle when its opposite muscle relaxes.
A
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The causative organisms for CAP and HCAP differ, but the modes of transmission do not; that are all transmitted via aerosolized droplets which enter the lungs.
Answer the following statement true (T) or false (F)
Some clones of the original immune cells are __________ cells, long-lived B and T cells reserved for future
encounters with the antigen.
Fill in the blank(s) with the appropriate word(s).Membrane proteins serve many functions. One of the functions is transportation of substances across the membrane. If a cell biologist placed cells into an environment in which a chemical has been added that blocks the function of only carrier proteins, the process that will be affected is
A. pinocytosis. B. phagocytosis. C. simple diffusion. D. active transport. E. osmosis.
Linnaeus based most of his classification system on _____________.
a. cell organelles b. biochemical comparisons c. structural comparison d. embryology