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Tommy
blume ch.3 36-43
Question | Answer |
---|---|
Why did we compare a cells permeable membrane to a screen on the window? | A permeable membrane would keep bad things out like a screen would keep flies out and the membrane lets good things in like a screen would let air in. |
Describe diffusion: | Movement from an area with more molecules to an area with less molecules. |
what is equilibrium? | when molecules are spread out evenly throughout a space. |
what would cause a human cell to use fermentation instead of cellular respiration? | When there is not enough oxygen for respiration to occur. |
What two things do producers give off as wastes that consumers need? | Oxygen and sugars |
What 2 things do consumers give off that producers need? | Carbon dioxide, and water |
Give an example of a producer | a plant |
Give an example of a consumer | a human |