What is the function of the sodium potassium pump? To move sodium ions extracellularly and potassium ions intracellularly
To move sodium and potassium ions extracellularly
To move potassium ions extracellularly and sodium ions intracellularly
To move sodium and potassium ions intracellularly

Darrel conducted an experiment with the following procedure: fill two cups with ice water. place an uninflated balloon snuggly onto your left index finger. blow a little air into an identical balloon, and place it onto your right index finger. place both fingers into the cups of ice water. darrel noticed that his right finger felt warmer in the ice water than did his left finger. which of the following does the experiment show? a. air is a good radiator of heat. b. air is a good insulator of heat. c. air is a good conductor of heat. d. air is a good convector of heat.

Most of the fossils found in virginia are in the coastal plain, valley, ridge, and appalachian plateau regions, best suggesting that these geographic provinces a) were once covered by seawater. b) are the oldest parts of virginia. c) have a great deal of karst topography. d) have large amounts of sedimentary rock.

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these