The designation CRE refers to:

What will be an ideal response?


a group of Bacteria that are resistant to many classes of Antibiotics

Biology & Microbiology

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Bone mass decreases with the activity of osteoblasts.

a. true b. false

Biology & Microbiology

The ocean has mitigated the impact of anthropogenic carbon dioxide production by

A) absorbing 500 billion tons of atmospheric carbon dioxide. B) absorbing over 80% of the trapped heat energy. C) storing 600 billion tons of organic carbon. D) absorbing 500 billion tons of atmospheric carbon dioxide and over 80% of the trapped heat energy.

Biology & Microbiology

Silica-rich shells of ancient diatoms are the source of diatomaceous earth that can be used _____

a. to thicken foods c. as a fertilizer b. as a gelatin substitute d. as an insecticide

Biology & Microbiology

Why is more than one sperm needed for fertilization to occur, when only one sperm actually penetrates the egg?

a. the sperm work together to lower the acidity in the uterus for survival b. the sperm work together reduce drag as they swim up the oviduct c. the sperm work together to surround the egg prior to fertilization d. the sperm work together to break down the egg's protein layer e. the sperm work together to break down the cap on the sperm's head

Biology & Microbiology