Ques:Answer the following question given this paragraph: Q: From what did the first proto-oncogenes arise? Choices: - spores - carcinogens - bacteria - viral infections A:

Ans:viral infections
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Ques:Answer the following question given this paragraph: Electromagnetic waves vary in their wavelengths, frequencies, and energy levels. The full range of electromagnetic waves makes up the electromagnetic spectrum. Q: What do we call the full range of electromagnetic waves? Choices: - electromagnetic scale - molecular spectrum - mechanical spectrum - electromagnetic spectrum A:

Ans:electromagnetic spectrum
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Ques:Answer the following question given this paragraph: Q: Amplification that occurs in which cells often requires signal transduction pathways involving second messengers? Choices: - axons - optic nerves - catayst cells - sensory receptor A:

Ans:sensory receptor
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Ques:Answer the following question given this paragraph: Q: Common among mammals and insects, pheromones are often related to what type of behavior? Choices: - aggressive - immune - cardiac - reproductive A:

Ans:
reproductive
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