Biology, 18.03.2021 18:50 risaroo070618
Which theory is most widely supported by scientists as an explanation of how life began on Earth?
-Photosynthetic organisms developed after consumers.
-Prokaryotic organisms evolved from eukaryotic organisms.
-Organic molecules formed from common inorganic molecules.
-Organisms developed first on land then moved into the oceans.
Answers: 2
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What links the two strands in a dna helix together in the middle? a. phosphate groups b. sugar rings bonded together c. proteins d. bases with hydrogen bonds
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Write a paragraph at least 5 sentences “why all vaccinations should be mandatory”
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Select the correct answer from each drop-down menu. in an experiment, dr. travis examined the effects of calcium intake on osteoporosis, a condition that causes an increased risk of bone fractures. the amount of calcium is variable. the risk of bone fractures .
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When the cell concentrates potassium within, against the natural tendency of matter, it is performing a.passive diffusion b.facilitated diffusion c.active transport d.pinocytosis
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Which theory is most widely supported by scientists as an explanation of how life began on Earth?
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