When macrophages bind to an antigen they
secrete cytokines. Cytokines act as
a. antibodies.
b. phagocytes.
c. signaling molecules.
d. enzymes.
e. antigens
C
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A structure found in cells of all three domains, prokaryotes and eukaryotes, is the
A. cilium. B. ribosome. C. cell wall. D. mitochondria. E. chloroplast.
Blood usually continues on from capillaries to
enter ____ in its travel through the human body. a. arterioles b. venules c. arteries d. veins e. other capillaries
Using the Goldman equation, what is the approximate resting potential due to Na+ and K+ if the relative permeability of K+ to Na+ is 30 to 1 and the concentrations of K+ are 10:100 (out:in) and the concentrations of Na+ are 140:10 (out:in)?
What will be an ideal response?
________ is the process whereby a molecule of DNA copies itself
Fill in the blank(s) with correct word