Ques:Answer the following question given this paragraph: If a cell were a house, the plasma membrane would be walls with windows and doors. Moving things in and out of the cell is an important role of the plasma membrane. It controls everything that enters and leaves the cell. There are two basic ways that substances can cross the plasma membrane: passive transport and active transport. Q: In how many basic was can substances cross the plasma membrane? Choices: - one - three - four - two A:

Ans:two
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Ques:Answer the following question given this paragraph: Look at the classroom in Figure below . It has several sources of visible light. One source of visible light is the sun. Sunlight enters the classroom through the windows. The sun provides virtually all of the visible light that living things need. Visible light travels across space from the sun to Earth in electromagnetic waves. But how does the sun produce light? Read on to find out. Q: Lead shielding is used to block what type of rays? Choices: - ultraviolet - alpha - toxic - gamma A:

Ans:gamma
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Ques:Answer the following question given this paragraph: Q: How do prokaryotes reproduce? Choices: - inorganically - sexually - unusually - asexually A:

Ans:asexually
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Ques:Answer the following question given this paragraph: Q: Some 96% of the dry mass consists of organic compounds produced by what? Choices: - erosion - electrolysis - reproduction - photosynthesis A:

Ans:
photosynthesis
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