Identifying carboxysomes in a bacterium suggests it
A) contains the reverse citric acid cycle.
B) has a deficient Calvin cycle and accumulated CO2.
C) is in a carboxylic acid rich environment and is storing excess quantities for potentially harsh conditions.
D) will use the Calvin cycle convert the concentrated CO2 into biomass.
Answer: D
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How do nastic movements differ from tropisms?
A. Nastic movements are slower than tropisms. B. Nastic movements only occur in the dark. C. Tropisms are directional responses to directional stimuli; nastic movements are the same regardless of the direction of the stimulus. D. Nastic movements happen after a stimulus, tropisms happen during a stimulus. E. Nastic movements are not reversible.
What was the average number of spots at the start of all your experiments?
a. 2.0 b. 3.0 c. 4.0 d. 5.0
Many primate adaptations are a response to
living in
a. warm climates. b. trees. c. underground burrows. d. deserts. e. grasslands
The leaflike appendages of moss gametophytes may be one to two cell layers thick. Consequently, which of the following is LEAST likely to be found associated with such appendages?
A) cuticle B) phenolics C) stomata D) peroxisomes