Ques:Q: What process do all species use to make the next generation? Choices: - separation - differentiation - variation - reproduction A:

Ans:reproduction
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Ques:Q: Scientists use the principles of what to make predictions, which they then test? Choices: - their teachers - their guesses - their faith - their hypothesis A:

Ans:their hypothesis
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Ques:Q: Which cycle tracks the flow of nitrogen through an ecosystem? Choices: - nitrogen reaction - water cycle - life cycle - nitrogen cycle A:

Ans:nitrogen cycle
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Ques:Q: What process of allows multicellular organisms to grow and repair themselves? Choices: - proteins division - atom split - DNA division - cell division A:

Ans:
cell division
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