What are clathrates?

a. stable, recurring tropical weather patterns
b. subterranean reserves of petroleum and natural gas
c. deep-ocean deposits of frozen methane and ice
d. carbon-dioxide rich layers of ice in Antarctic ice cores


c. deep-ocean deposits of frozen methane and ice

Biology & Microbiology

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Nonvascular plants lack _____

a. spores b. gametes c. zygotes d. seeds e. chloroplasts

Biology & Microbiology

In the GAL gene system, which protein binds to the activation domain of the activator protein, ultimately blocking transcription in the absence of galactose?

What will be an ideal response?

Biology & Microbiology

An unbranched polymer composed of simple sugars is a(n)

A) protein. B) triglyceride. C) starch. D) glycoprotein. E) amino acid.

Biology & Microbiology

Canning works to preserve foods through

A) creation of an anaerobic environment. B) creation of an anaerobic environment and exposure to high heat. C) exposure to high heat. D) mutation of bacterial DNA. E) increasing pH.

Biology & Microbiology