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
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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
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?
Human infection with Erysipelothrix rhusiopathiae takes a milder form and is known as:
A. Impetigo B. Erysipelas C. Necrotizing fasciitis D. Erysipeloid
The process of ________ requires the activity of DNA ligase.
A. translation B. capping C. transcription D. DNA replication E. transduction