How did the evolution of photosynthetic life alter Earth’s the atmosphere? Question 6 options: Carbon dioxide began to dissolve into the ocean at a faster rate Ammonia molecules were broken down into nitrogen and hydrogen Oxygen began to accumulate in a atmosphere as it was released by organisms Hydrogen moved to the top of the atmosphere and most of it escaped into space.
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Biology, 22.06.2019 00:00
Hurry which of these is true about index fossils? a) are very scarcely found b) used as guides in relative dating c) found in the youngest layer of the rock d) used as reference points in absolute dating
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In a vegetable garden 45 bean plants have been eaten by deer 5 are untouched what is the frequency of bean plants in the garden that have been eaten?
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Each member of a class sampled a piece of ptc testing paper. thirty people sampled the chemical. twenty persons were tasters. how many had heterozygous genes? 10 20 0-20 indeterminate
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How did the evolution of photosynthetic life alter Earth’s the atmosphere? Question 6 options: Carbo...
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