The Alcosensor uses IR to measure alcohol in a person's breath.

a. true
b. false


b. false

Biology & Microbiology

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Which zone experiences the most abiotic change over a 24-hour period?

A) A B) B C) C D) D E) E

Biology & Microbiology

If a trait has a heritability of 0.5, this means that

A. all variation in the population is caused by genotypic differences. B. all variation in the population is caused by environmental differences. C. the variation in the population is the result of epigenetic effects. D. the genotype and environment contribute equally to the variation seen in the population. E. None of these is true.

Biology & Microbiology

Inhibitors that fill the enzyme's active site and compete with the normal substrate are

a) noncompetitive. b) allosteric. c) competitive. d) conformational.

Biology & Microbiology

The combined effects of inhibitory and excitatory effects on a postsynaptic cell will decide whether that cell generates an action potential. This principle is called ________

A) potentiation B) internalization C) threshold D) summation

Biology & Microbiology