What do we call the substances that
are created when elements bond
together in predictable, f...
Biology, 19.11.2020 01:00 bryanna0105
What do we call the substances that
are created when elements bond
together in predictable, fixed ratios?
A. Compounds
B. Mixtures
Answers: 1
Biology, 22.06.2019 03:00
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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Biology, 22.06.2019 03:50
What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cellaβs eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen
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