Small molecules and ions can pass through gap junctions.

a. true
b. false


Ans: a. true

Biology & Microbiology

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In general, which is less harmful, a duplication or deletion? ____

Fill in the blank with the appropriate word.

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A motor neuron and all the muscles under its control are called what kind of unit?

a. end b. movement c. muscle d. motor e. coordination

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Stomach motility

a. decreases following a heavy meal. b. controls the amount of material leaving the pyloric sphincter. c. is unaffected by emotional state or external environmental factors. d. may be retarded when stretch receptors on the stomach wall are activated. e. is increased by hormones released in response to high stomach acidity.

Biology & Microbiology

A plant that requires two years to complete its life cycle is referred to as:

a. a biennial. b. an annual. c. a perennial. d. a dicot. e. a monocot

Biology & Microbiology