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Which types of embryos have pharyngeal slits? a. fish, amphibians, reptiles, and birds b. fish and amphibians c. all chordates d. fish, amphibians, and reptiles
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Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence
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When ash and dust begin to settle on the ground, they eventually become compacted by
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When the oxygen produced by photosynthetic plants in the water dissolves in the water, which of these is being formed?
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Which description shows competition in an environment? an organism that feeds on some food an organism that finds a place to sleep three organisms of the same species living in an area three organisms battling over limited resources
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Which types of embryos have pharyngeal slits? a. fish, amphibians, reptiles, and birds b. fish and...
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