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The initial organisms on earth were essentially prokaryotic heterotrophs. how did they obtain their energy?
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What is true of all organisms in the kingdoms protista, plantae, fungi, and animalia? a. they are multi-celled. b. they are photosynthetic. c. they have cells that contain membrane-bound organelles. d. they contain cells that lack membrane-bound organelles.
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Why are scientists concerned about the depletion of the ozone levels in the stratosphere?
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The polio virus can cause skeletal muscle paralysis by destroying neuron cell bodies. what area of the spinal cord is destroyed
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Biology, 22.06.2019 17:00
Which of the following is a feature of all cells? o a. all cells have a nucleus. o b. all cells have dna for at least part of their life cycle. het . o c. all cells are spheres. o d. all cells have a rigid cell wall.
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The initial organisms on earth were essentially prokaryotic heterotrophs. how did they obtain their...
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