What mineral is found in horsetails that help

protect it from insects?



a. siderite
b. aluminum
c. silica
d. feldspar
e. amethyst


C

Biology & Microbiology

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Predict the experimental outcome if Hershey and Chase had used a bacterial cell instead of a bacteriophage in the procedure.

A. Radioactivity would be detected in neither the supernatant nor the pellet. B. Radioactivity would be detected in the supernatant but not in the pellet. C. Radioactivity would be detected in the pellet but not in the supernatant. D. Radioactivity would be detected in both the supernatant and pellet.

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Four elements make up more than 96% of the mass of most living organisms. Which of the following

is NOT one of those four elements?

a. sodium b. carbon c. oxygen d. nitrogen e. hydrogen

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Newton's Law of cooling

What will be an ideal response?

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HIV

A. is a retrovirus. B. infects most mammals. C. can be killed with antibiotics. D. causes liver cancer. E. can be transmitted through the skin.

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