The sarcolemma of a muscle fiber is the
A. nucleus
B. mitochondia
C. plasma membrane
D. connective tissue covering
E. none of the above
Answer: C. plasma membrane
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You modify one species of rhizobia (Species A) to express flavonoid receptors and Nod factors from another species of rhizobia (Species B). This modified rhizobia is likely to:
A. form a symbiosis with the plant with which species A normally forms a symbiosis. B. be unable to bind flavonoids. C. be unable to fix nitrogen. D. form a symbiosis with the plant with which species B normally forms a symbiosis.
All of the following are true about prokaryotic cells EXCEPT:
a. Prokaryotic cells are smaller than eukaryotic cells. b. They do not contain DNA. c. They have no membrane-bound organelles. d. They have ribosomes and a cell membrane. e. They are found in two domains: Bacteria and Archaea.
A good hypothesis:a
can be proven to be true. b. is falsifiable. c. can only be tested once. d. is a statement of fact. e. represents important conclusions.
All of the chemical reactions that take place within your body are known as
A. organismal structure. B. metabolism. C. irritability. D. adaptation.