At rest, a nerve cell has a high concentration of ____ inside and a high concentration of ____ outside

a. acetylcholine; chlorine
b. sodium; potassium
c. potassium; sodium
d. calcium; phosphorus
e. phosphorus; calcium


C

Biology & Microbiology

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In jawed fishes, the gills primarily serve which function?

a. gas exchange only b. feeding only c. water elimination only d. both feeding and gas exchange e. waste excretion only

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How is it possible for water to defy gravity and travel from the roots to the tops of plants? Use the tension-cohesion

model to explain your answer. What will be an ideal response?

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Human infection with Erysipelothrix rhusiopathiae takes a milder form and is known as:

A. Impetigo B. Erysipelas C. Necrotizing fasciitis D. Erysipeloid

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The process of ________ requires the activity of DNA ligase.

A. translation B. capping C. transcription D. DNA replication E. transduction

Biology & Microbiology