The largest group of proteobacteria are the ________.

A. delta proteobacteria
B. beta proteobacteria
C. gamma proteobacteria
D. alpha proteobacteria


Answer: C

Biology & Microbiology

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The structure enabling depolarization to travel deep into the muscle fiber is the ______.  

A.  sarcomere B.  motor unit C.  T tubule D.  sarcoplasmic reticulum

Biology & Microbiology

________ is the direct transfer of a phosphate to ADP, forming ATP.

Fill in the blank(s) with the appropriate word(s).

Biology & Microbiology

A plant that flowers in the second year of life is a(n)

a. annual. b. biennial. c. perennial. d. annual or biennial.

Biology & Microbiology

Natural selection ________.

A. prepares organisms for future changes in the environment B. results in evolutionary adaptation C. is a very rare phenomenon D. does not affect allelic frequencies

Biology & Microbiology