What are the two most abundant gases in our atmosphere?
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a. nitrogen and oxygen
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b. water vapor and oxygen
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c. carbon dioxide and nitrogen
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d. oxygen and hydrogen

What type of specimens where you able to see under each of the microscopes in the microscope activity

What would happen if the krill were removed from the food web

4. if a cell is placed inside a solution that has a higher concentration of solute than on the inside of the cell, what can be said about the movement of water? a. water will move out of the cell, causing it to shrivel. b. water will move in and out of the cell at the same rate. c. water will move out of the cell, causing it to swell. d. water will move into the cell, causing it to swell.