35. A nonthreshold dose-response curve suggests that: a. Below a threshold amount of radiation, no biologic damage occurs b. Below a threshold amount of radiation, a safe amount of biologic damage occurs c. Above a threshold amount of radiation, some biologic damage occurs d. No matter how small the amount of radiation received, some biologic damage occurs A B C D 36. The radiation received and the the dose rate, the shorter the latent period. a. Less; slower b. Less; faster c. More; slower d. More; faster A B C D

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35. A nonthreshold dose-response curve suggests that: a. Below a threshold amount of radiation, no biologic damage occurs b. Below a threshold amount of radiation, a safe amount of biologic damage occurs c. Above a threshold amount of radiation, some biologic damage occurs d. No matter how small the amount of radiation received, some biologic damage occurs A B C D 36. The radiation received and the the dose rate, the shorter the latent period. a. Less; slower b. Less; faster c. More; slower d. More; faster A B C D

Answer 1

35. **D** A nonthreshold dose-response curve implies that any amount of radiation, no matter how small, has the potential to cause some biological damage. Options A, B, and C describe a threshold model.36. **D** A higher dose of radiation and a faster dose rate (meaning the radiation is delivered quickly) result in a shorter latent period (the time between exposure and observable effects).

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