Why Did the Authors Choose to Look Specifically for Vertebrate

question 17

Multiple Choice

Why did the authors choose to look specifically for vertebrate mitochondrial genes in their core samples?

• A)Because only vertebrates eat plants
• B)Because plants also have mitochondria
• C)Because animal cells do not have chloroplasts
• D)Because animal cells do not have a nucleus
• E)Because animals would have been present in Beringia before plants

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