If cancer is discovered at an early stage, surgical removal is most likely used as a first means of treatment before chemotherapy. This is because chemotherapy agents

A. are not specific and can target all cells of the body.
B. can cause damage to other organs and tissues.
C. can cause negative side effects including nausea, and hair loss.
D. All of the answer choices are correct.


Answer: A

Biology & Microbiology

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True or False: Only 10% of the nitrogen added to croplands ends up in food

A. true B. false

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In skeletal muscle contraction, an increase in ____in the cytosol triggers the crossbridge cycle

a. troponin b. Ca2+ c. tropomyosin d. ATP e. acetylcholine

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The Murchison meteorite was a significant discovery for the study of the origin of life, because it ________

A) contained self-replicating organisms B) contained carbon, hydrogen, nitrogen, and oxygen C) contained significant amounts of amino acids D) contained short lengths of RNA E) descended through the atmosphere slowly enough that friction was negligible

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A phosphate group binds to what molecule to create the "backbone" of the DNA molecule?

A) Adenine B) Deoxyribose C) Ribose D) Other phosphate molecules

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