The phenomenon in which rna molecules in a cell are destroyed if they have a sequence complementary to an introduced double-stranded rna is called

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it cools slower in the earth meaning the crystals have more time to form than lava on the surface

the "dirty dozen" chemicals banned in an international treaty are formally known as persistent organic pollutants, or pops. the united nations environment program provided this background on what they are and what they can do to humans and wildlife.

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b. lithosphere, asthenosphere, mesosphere   is the answer most likely