Biology, 21.01.2020 04:31 fredvales19
"the student predicted that the contractile vacuole would contract fewer times in one minute in a solution that had a higher concentration of salt than that found in typical pond water. this prediction is most likely
(1)correct, because a high concentration of salt in the environment will force water into the cell, causing the contractile vacuole to pump
(2)incorrect, because salt would be entering the cell, and the contractile vacuole would have to pump it out
(3)incorrect, because the concentration of salt in the environment should not affect a cell
(4)correct, because water would be moving out of the cell into the salt solution"
Answers: 1
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Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food
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Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?
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