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QUESTION 48 A scientist conducted an experiment to determine how the amount of salt in a body of water affects the number of plants that can live in the water. In this experiment the independent variable is O The water O The amount of salt in the water O The temperature of water O The number of plants in the water QUESTION 49 You like to work out at the gym and the bagel and lax breakfast you had this morning is wearing thin.. In humans and vertebrates this form of carbohydrate breaks down to release glucose to give you more energy to last till supper monosaccharides O disaccharides O glyocgen fructose QUESTION 50 concentration and requires a is the movement of molecules from an area of high concentration to an area of low net input of energy. True False
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Answer #1

1. The independent variable in the experiment is the amount of salt in the water.

3. False. Diffusion is the movement of molecules, ions from an area of higher concentration to an area of lower concentration without the use of energy. The movement is down the concentration gradient hence it is spontaneous.

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Answer #2
A .lam sure that my answer
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