Which of the following is true? a.)during active transport, a material may be moved from an area of low concentration to an area of high concentration b.)during passive transport, energy is used to move material against a concentration gradient c.)during active transport water is pumped across a membrane to equalize the concentration of salts on both sides d.)during passive transport osmosis allows salts to move from one side of the membrane to the other to equalize concentrations on both sides.
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Wich level of organization includes all the other levels or organizations
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Which example describes a mutualistic relationship between organisms? young wasps prey on caterpillars. crabs eat the remains of dead fish. tapeworms feed on food in the intestines of cats ants protect a tree on which they feed.
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Casts and mold are a type of preservation where the original material decays, leaving a mold in surrounding rock that can be filled with another sediment a. true b. false
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Pl as time goes by and water goes through the water cycle again and again, the amount of water on earth: increases decreases ostays the same goes up and down
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Which of the following is true? a.)during active transport, a material may be moved from an area of...
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