Which of the following was a major milestone that allowed for greater diversity of life during the paleozoic era? reptiles became more diverse. many marine animals went extinct. photosynthetic prokaryotes produced more oxygen. animals moved from the sea to the land.
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Biology, 22.06.2019 00:00
Molecular models of two different substances are shown below. in the molecule on the left, the oxygen atom pulls on electrons more strongly than the hydrogen atoms. in the molecule on the right, the two oxygen atoms pull on the shared electrons with the same strength. water molecule, h,o oxygen molecule, oz when the two substances are put in the same container, they do not attract each other. why does this happen? a. they both contain oxygen. b. one is polar and one is nonpolar. c . they are both polar. d. they contain different elements.
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Biology, 22.06.2019 17:00
Which of the following describes what an activator an enhancer are
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Biology, 23.06.2019 03:00
Analyze the importance of the kind of receptors found in fingers
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