A psychoactive drug that delays the removal of a neurotransmitter from the synapse will ________

A) dampen the response of the receiving neuron
B) prolong the effect of the neurotransmitter on the receiving neuron
C) prevent the neurotransmitter from working
D) bind to the receptor and affect the receiving neuron in the same way as the neurotransmitter


B

Biology & Microbiology

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Which of the following provides the best explanation for why viruses are not included in the three domain system?

A. Viruses have either DNA or RNA, not both. B. Viruses show no evidence of evolution. C. Viruses are not a cellular life form. D. Viruses are too small.

Biology & Microbiology

If several traits are affected by the same allele, the allele is said to be

A. pleiotropic. B. dominant. C. epistatic. D. recessive.

Biology & Microbiology

In the process of peristalsis:a

waves of muscular contractions force food down the digestive tract. b. chemical digestion of food takes place in the digestive tract. c. food is discharged from the bodies of unicellular animals. d. digestion occurs intracellularly within food vacuoles. e. digestion of food takes place outside the body of an animal.

Biology & Microbiology

What term is applied to a variety of projects whereby genome sequences are deposited in databases for research purposes?

A) cloning B) proteomics C) bioinformatics D) genomics E) genetics

Biology & Microbiology