Biology, 20.02.2021 08:10 paolaviviana
Microbiologists have announced the discovery of over 30 new species of bacteria that thrive between the teeth and gums of humans. The bacteria could not be grown in the researcher's laboratories, nor were any of them ever observed via any kind of microscopy. If they couldn't culture them or see them, how could the researchers know they had discovered new species? If they couldn't examine the cells for the presence of a nucleus, how did they determine that the organisms were prokaryotes and not eukaryotes?
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Biology, 22.06.2019 18:30, ryanbreland14
Crinoids, also known as sea lilies, appear to be sea plants but are not plants at all. crinoids are an echinoderm species which uses anchoring structures called holdfasts to attach themselves to the sea floor. crinoids were most abundant in pennsylvania during the mississippian period, which ranged from 375 to 320 million years ago. fossils of the crinoids shows that during most of this time pennsylvania was that provided favorable conditions for crinoid growth. a) glacial terrain b) a dry and sandy plain c) mostly mountain ranges d) covered by warm, shallow seas
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Biology, 22.06.2019 20:00, yasminothman02
Where does the citric acid cycle take place in eukaryotic cellular respiration?
Answers: 3
Biology, 23.06.2019 00:00, Amazingdolannn
How many neutrons does element x have if its atomic number is 29 and its mass number is 86?
Answers: 2
Microbiologists have announced the discovery of over 30 new species of bacteria that thrive between...
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