The energy sources needed for the light reactions and the carbon reactions, respectively, are
A. Sunlight serves as the energy source for both sets of photosynthetic reactions.
B. ATP and carbon dioxide.
C. sunlight and ATP.
D. ATP and sunlight.
E. sunlight and carbon dioxide.
C. sunlight and ATP.
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What is NOT a reason why an abscessed wound might not respond to antibiotic treatment?
A. The bacteria within the abscess have ceased replicating, and many antibiotics require actively replicating cells in order to be effective. B. The blood vessels that would bring the drug to the area have been destroyed or clogged with clots, preventing the drug from getting to the microbes in the abscess. C. The bacteria in an abscess have all acquired multi-drug antibiotic resistance, so any drugs that are used will have no effect. D. The chemical composition of the pus in the abscess often inactivates antibiotic drugs, making them ineffective.
What macronutrient is rarely deficient?
a. carbon b. hydrogen c. oxygen d. zinc e. carbon dioxide
Which of the following statements is false?
a. All vertebrates have a ventral tubular nervous system. b. All vertebrates have a tail at some stage in their life cycle. c. All vertebrates have a notochord at some stage in their life cycle. d. All vertebrates have pharyngeal gill slits at some stage in their life cycle. e. None of these are false.
After embryonic development, members of the phylum Rotifera are incapable of:
a. reproduction. b. cell division. c. locomotion. d. excretion. e. ingestion.