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What were the main components of earth’s earliest atmosphere? oxygen and ammonia hydrogen and helium oxygen and nitrogen hydrogen and nitrogen
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Which part of the cell is affected by the movement of molecules through diffusion, osmosis and active transport?
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Biology, 22.06.2019 10:30
In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.
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Biology, 22.06.2019 11:20
Drag each label to the correct location on the chart. match the function to the type of tissue
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Elements are basic forms of ?...
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