Byproduct of photosynthesis The main byproduct of photosynthesis that is essential to most life forms is
a) glucose.
b) carbon dioxide.
c) chlorophyll.
d) oxygen.
e) sunlight.
Answer: d) oxygen.
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Which occurs only in anaerobic metabolism of glucose?
A. acetyl CoA formation B. glycolysis C. lactate fermentation D. oxidative phosphorylation E. citric acid cycle
When a biologist is looking for a suitable organism in which she can study the process of evolution in a laboratory setting, what would be an important consideration?
A) The organism should be large. B) The organism should have a short generation time. C) The organism should produce relatively few offspring. D) The organism should have a complete fossil record of its ancestry.
Which of the following is in the coding region of a gene?
A. Trailer B. Leader C. Promoter D. None of the choices are correct.
What is the only group of Mollusca that does NOT have a radula?
A) Bivalves B) Gastropods C) Chitons D) Cephalopods E) All mollusk have a radula.