In the Section "Investigating Life: Genetic Messages from Ancient Ecosystems",why

question 56

Multiple Choice

In the section "Investigating Life: Genetic Messages from Ancient Ecosystems",why did the scientists choose to look specifically for vertebrate mitochondrial genes in their core samples?

• A)Only vertebrates eat plants.
• B)Plants and animals have different mitochondrial genes.
• C)Animal cells do not have chloroplasts.
• D)Animal cells do not have nucleus.
• E)Animals were present in Beringia before plants.

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