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Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.
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Which of the following types of stars are dim but can have high surface temperatures? giants main sequence stars supergiants dwarfs
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What could happen if two base pairs on a strand of dna or switched
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Biology, 22.06.2019 14:30
The human body needs energy in order to carry out life processes such as breathing. where does the body get this energy? a. from eating food b. from learning about new things c. from lying in the sun d. from sleeping
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10. Imagine a seesaw, like on a children's playground. Which of the following drawings of a seesaw b...
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