Ques:Q: What are two nonliving things that all living things need for survival? Choices: - sunlight - calcium - methane - water and air A:

Ans:water and air
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Ques:Q: What has has revolutionized biological and biomedical research and applications? Choices: - synthesis chain reaction - organism chain reaction - Compound chain reaction - polymerase chain reaction A:

Ans:polymerase chain reaction
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Ques:Q: Which cycle is named after the scientist melvin calvin? Choices: - krebs cycle - melvin cycle - melcal cycle - calvin cycle A:

Ans:calvin cycle
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Ques:Q: What is the process by which some solids transition directly into gases? Choices: - articulation - vaporization - amplification - sublimation A:

Ans:
sublimation
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