Answer:
Two characteristics are a notochord, and a dorsal hollow nerve cord.
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Answer:
The correct answer isoption b: it will be converted into lactate and build up in the bloodstream.
Their body goes into lactic acid fermentation which is inefficient and does not produce ATP for energy.
The outer core of Mars cooled too quickly and the magnetic field didn't have time to fully form so the solar winds destroyed the magnetic field and the atmosphere
