Ques:Q: When the helium is gone, the stars become what? Choices: - comets - yellow dwarfs - red giants - white dwarfs A:

Ans:white dwarfs
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Ques:Q: Physical science can be defined as the study of matter and what? Choices: - time - natural forces - space - energy A:

Ans:energy
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Ques:Q: Called the powerhouses of the cell, what organelles are the site of cellular energy production? Choices: - nucleus - mitosis - cell wall - mitochondria A:

Ans:mitochondria
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Ques:Q: After the amino acid molecule has been bound to its what, protein synthesis can take place? Choices: - base - RNA receptor - dna molecule - trna carrier A:

Ans:
trna carrier
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