The light reactions use sunlight as the energy source.

a. true
b. false


a. true

Biology & Microbiology

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Around what percentage of all genes encode membrane proteins?

A. 0% B. 10% C. 25% D. 50% E. 75%

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Mycobacterial infections in AIDS patients are mostly likely to be caused by ________.

A. Mycobacterium avium complex B. Mycobacterium africanum C. Mycobacterium bovis D. Mycobacterium tuberculosis

Biology & Microbiology

________ are white blood cells that attack cancer cells

A) Microphages B) Neutrophils C) Macrophages D) Natural killer cells E) Mast cells

Biology & Microbiology

What is the primary purpose of a fruit?

A. to feed the growing embryo of the plant B. to reward animals for pollination C. to distract predators from the main plant D. to disseminate seeds

Biology & Microbiology