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

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A NASA scientist receives satellite data indicating that a newly discovered planet contains no oxyge...