Which best describes an abiotic limiting factor in a population?
a. animals
b. plants
c. water
d food
Answer: c. water
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NADPH is produced by
A. light reactions alone. B. neither the light reactions nor the Calvin cycle. C. the Calvin cycle alone. D. both light reactions and the Calvin cycle. E. NADPH production is not a part of photosynthesis.
Which of the following correctly lists the terms in hierarchical order from smallest to largest?
a. electron, atom, carbon element, water molecule, carbohydrate b. atom, electron, carbohydrate, carbon element, water molecule c. carbohydrate, carbon element, atom, water molecule, electron d. water molecule, carbon element, electron, carbohydrate, atom
The pathogen Haemophilus influenzae B causes_____.
A) Meningitis in children B) Upper respiratory flu C) Endocarditis D) Genital chancroid
Which of the following restriction enzyme sites would produce blunt-ended fragments? (The arrow represents the cutting site of the enzyme.)
A) C?CGG B) G?GATCC C) G?AATTC D) CCC?GGG E) A?AGCTT