Biology, 15.01.2020 01:31 mathman783
Depolarization, the process by which muscle fibers are stimulated to contract, occurs when:
a. calcium ions rapidly enter the cell, facilitating contraction.
b. potassium ions escape from the cell through specialized channels.
c. cell wall permeability changes and sodium rushes into the cell.
d. cardiac muscle relaxes in response to a cellular influx of calcium.
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How did the club fungi get its name? a. it is named for the club-shaped seeds it produces. b. it is named for the way individual species grow together in small groups called “clubs.” c. it is named for the club-shaped area where it produces spores. d. it is named for the club-like mechanism it uses to kill its prey.
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Brass gets discoloured in air because of the presence of which of the following gases in air? a. oxygen b. hydrogen sulphide c. carbon dioxide d. nitrogen
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Depolarization, the process by which muscle fibers are stimulated to contract, occurs when:
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