Biology, 17.03.2020 19:58 Trucofer2106
High-energy radiation is often used to treat cancer. Which statement best explains why this treatment is effective?
A. The radiation kills cancer cells but leaves healthy cells intact
B. The radiation is especially damaging to cancer cells because of their high rate of mitosis.
C. The radiation is especially damaging to cancer cells because of their genetic composition.
D. The radiation kills cancer cells and healthy cells equally, but is directed precisely at cancer cells.
Answers: 3
Biology, 21.06.2019 12:30
How does oxygen move from the respiratory system to the circulatory system? a. by pumping through the heart b. by circulating in an artery c. by moving across a synapse d. by diffusion across a capillary wall
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Biology, 22.06.2019 12:00
Define the apical impulse and describe its normal location, size, and duration. which abnormal conditions may affect the location of the apical impulse? explain the mechanism producing normal first and second heart sounds. describe the effect of respiration on the heart sounds. describe the characteristics of the first heart sound and its intensity at the apex of the heart and at the base. describe the characteristics of the second heart sound and its intensity at the apex of the heart and at the base.
Answers: 1
Biology, 22.06.2019 13:00
Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?
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Biology, 22.06.2019 13:30
What is used as a template during replication? a- mrna b- trna c- rrna d- dna
Answers: 1
High-energy radiation is often used to treat cancer. Which statement best explains why this treatmen...
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