Biology, 18.11.2019 16:31 edgartorres5123
All the biological macromolecules contain carbon, hydrogen and oxygen. however, most do not contain nitrogen. the category that contains nitrogen are a) lipids. eliminate b) proteins. c) carbohydrates. d) unsaturated fats.
Answers: 2
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Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?
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In the 1500s, an astronomer developed a new model of the universe. this model had the sun at the center of the universe, not earth. who was this astronomer?
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Which of the following structural adaptations an organism obtain food? a. dandelion seeds that can float in the wind b. the bright-colored skin of a poison dart frog c. the long neck of a giraffe d. the cardinal's bright red coloring
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