Exposure to environmental
factors like ultraviolet
light, asbestos fibers, and
cigaret...
Biology, 03.05.2021 08:30 rosie20052019
Exposure to environmental
factors like ultraviolet
light, asbestos fibers, and
cigarette smoke are known
to be
Select one:
O a. harmless and does not cause lasting cellular damage
O b. mutagens and might cause permanent DNA changes
O c. only temporarily damaging to cellular DNA
d. damaging to gametes and has no effect on somatic cells
Answers: 3
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Aeukaryotic cell must be from a plant if the cell a) a nucleus b) a nuclear envelope c) cytoplasm d) a cell wall
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What is the difference between bacterial infections and viral infections?
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The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?
Answers: 3
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Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism
Answers: 2
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