What fraction of all of the organic carbon on Earth results from microbial fixation of carbon dioxide in the oceans?
A. About 1/2
B. About 3/4
C. About 1/4
D. About 1/8
Answer: A
Biology & Microbiology
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HeLa cells were critical in _____
a. developing the polio vaccine b. developing a cure for malaria c. understanding fertilization d. developing a cervical cancer vaccine e. understanding cloning
Biology & Microbiology
Which began first?
A) Multicellular life in the ocean B) Multicellular life in fresh water C) Plants colonizing the land D) Animals colonizing the land
Biology & Microbiology
Exotoxins such as botox and other are made of:
A. Protein B. Lipids C. Carbohydrate D. Lipopolysaccharide
Biology & Microbiology
Explain what is meant by host range, what governs host range, and what is meant by tissue tropism.
What will be an ideal response?
Biology & Microbiology