The nerve gas Sarin is an antagonist of acetylcholine receptors.

a. true
b. false

Answer: b. false

Biology & Microbiology

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A fish with a cartilaginous skeleton and paired fins would be:

a. an Actinopterygian. b. a Crinoid. c. a Cephalochordate. d. a Urochordate. e. a Chondrichthyean

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Which type of life cycle occurs with fungi?

a. Haploid-dominant b. Diploid-dominant c. Alternation of generations d. Meiosis

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Biology & Microbiology

The diploid generation of the moss life cycle ____________.

A. produces spores B. develops from a spore C. is always larger and more conspicuous than the haploid stage D. is called the gametophyte

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Biology & Microbiology

Herd immunity fails when what percentage of the population is NOT vaccinated?

A) 1% B) 5% C) 10% D) 50%

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Biology & Microbiology