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.
Correct Answer:

Verified
Correct Answer:
Verified
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