What is the name for a horizontal stem system?

a. Ribosomes
b. Internodes
c. Nodes
d. Rhizomes


d

Biology & Microbiology

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The carotid bodies detect carbon dioxide in the blood and is, therefore, a

a. chemoreceptor. b. photoreceptor. c. thermoreceptor. d. mechanoreceptor. e. movement receiver.

Biology & Microbiology

Usually the only epidermal cells with chloroplasts are:

a. stomata. b. stoma. c. parenchyma. d. guard cells. e. all of these.

Biology & Microbiology

The Hershey & Chase experiment:

A: made use of the fact that DNA contains sulfur and proteins do not. B: labeled the protein coat of a bacterial virus with radioactive sulfur. C: labeled the RNA of the bacterium with radioactive phosphorous. D: transformed a nonvirulent bacterial strain with virus DNA. E: labeled the DNA of the virus with radioactive sulfur.

Biology & Microbiology

The fatty acid tails of unsaturated fats incorporate one or more __________.

A) single covalent bonds B) double covalent bonds

Biology & Microbiology