Biology, 25.06.2019 10:00 Thelearner100
Which statement best describes the role of the lungs? a. the lungs take in oxygen from the bloodstream. b. the lungs produce carbon dioxide as a waste product of cellular respiration. c. the lungs extract oxygen from the atmosphere for body cells to use. d. the lungs provide carbon dioxide to the capillaries.
Answers: 2
Biology, 22.06.2019 01:30
Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?
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Biology, 22.06.2019 05:30
If a strand of dna has 35% thymine. what is the percentage of cytosine, adenine, guanine?
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Which statement best describes the role of the lungs? a. the lungs take in oxygen from the bloodst...
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