Biology, 10.03.2020 17:02 nolimitsteve3210
A NASA scientist receives satellite data indicating that a newly discovered planet contains no oxygen gas in its atmosphere. From this information she concludes that complex multicellular organisms are UNLIKELY to exist on that planet. This is because.
a. unicellular organisms consume multicellular organisms when oxygen levels are low
b. other electron acceptors (like iron) are unlikely to be widely available and abundant
c. endosymbiosis requires high oxygen concentrations for evolution to proceed
d. complex multicellular life cannot exist once photosynthesis has evolved
Answers: 1
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Biology, 22.06.2019 10:30
In order to study genetic mutations, scientists must study genetic material. which statement describes the genetic material scientists are most likely studying? a) they study alleles that contain chromosomes, which are rna.b) they study alleles that contain genes, which are chromosomes.c) they study chromosomes that contain genes, which are dna segments.
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A NASA scientist receives satellite data indicating that a newly discovered planet contains no oxyge...
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