The simplest technique for isolating bacteria in growth media is referred to as the
A.
pour-plate method.
B.
streak-plate method.
C. serial dilution method.
D. MPN method.
B
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A group of specialized cells of similar structure and function is a(n)
a. organ system. b. cell cluster. c. organ. d. tissue. e. organism.
________ fish are those that live most of their lives in marine environments and return to freshwater to spawn
Fill in the blank(s) with correct word
What benefit do animals get from having very long loops of the nephron?
A) They can send more glucose back to circulation. B) They make less nitrogenous waste products. C) They can send more water back to circulation. D) They can excrete more salt.
The cell type responsible for contact dermatitis and tissue rejection is:
A. cytotoxic T cells B. Th1 cells C. CD8 cells D. CD4 cells