Biology, 20.09.2019 02:30 minnahelhoor
In rock layers, jellyfish fossils are found lower than trilobite fossils, and trilobite fossils are found lower than ammonite fossils. what can be determined from this information?
a- trilobites existed before jellyfish and ammonites. b- jellyfish existed before trilobites and ammonites. c- ammonites existed before trilobites and jellyfish. d- jellyfish, trilobites, and ammonites lived together.
Answers: 2
Biology, 21.06.2019 19:50
Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.
Answers: 3
Biology, 22.06.2019 11:30
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People with one sickle cell allele are not likely to get malaria. what is this an example of?
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Biology, 22.06.2019 14:00
What will happen if two of the base pairs of the stand of the dna are switched
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In rock layers, jellyfish fossils are found lower than trilobite fossils, and trilobite fossils are...
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