Which of the following statements about magnetotaxis in the anaerobic bacteria Aquaspirilium is not correct?
A. Aquaspirilium swim using a flagellum
toward magnetic north.
B. Aquaspirilium can be attracted to the side
of a dish using a bar magnet.
C. Aquaspirilium contain bits of magnetized
iron oxide used in sensing the earth's
magnetic field.
D. The earth's magnetic field is on a decline
that guides Aquaspirilium deeper into the
sediment.
E. Anaerobic bacteria from New Zealand that
swim toward magnetic south immediately
reverse their attraction to magnetic north
when moved to a northern environment.
E
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Humans are unable to get metabolic energy from cellulose because:
A. cellulose contains very little chemical energy. B. cellulose is not part of a normal diet. C. cellulose digesting enzymes are absent from the human gut. D. cellulose does not taste good. E. cellulose is present in large quantities in the gut.
Explain why the discovery of iron-oxidizing phototrophs has important implications for both understanding the evolution of photosynthesis and explaining the large deposits of ferric iron (Fe3+) found in ancient sediments on Earth
What will be an ideal response?
Asexual reproduction is indicated by letter
a. A. b. B. c. C. d. D. e. E.
What contributes to muscle fatigue?
a. lactic acid buildup b. glycogen depletion c. both lactic acid buildup and glycogen depletion d. loss of nerve innervation e. stretching a muscle