Biology, 30.07.2019 22:30 powella033
Biology students used raw eggs in an experiment on tonicity and osmosis. the students put their eggs into vinegar to remove the shells. the vinegar was used to remove the shell form the raw egg. what other effect(s) did the vinegar have on the egg? a) the vinegar solution was hypotonic, causing the egg to gain mass. b) the vinegar solution was hypotonic, causing the egg to lose mass. c) the vinegar solution was hypertonic, causing the egg to gain mass. d) the vinegar solution was isotonic to the egg so the mass remained constant.
Answers: 2
Biology, 21.06.2019 18:30
Which of the following is an example of a tissue on the digestive system a.the stomach b.smooth muscle that lines the stomach c.nerve cells in the stomach d. enzyme molecules in the stomach
Answers: 1
Biology, 22.06.2019 01:50
Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules
Answers: 2
Biology, 22.06.2019 03:30
The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return
Answers: 2
Biology, 22.06.2019 04:30
Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?
Answers: 3
Biology students used raw eggs in an experiment on tonicity and osmosis. the students put their eggs...
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