Biology, 27.12.2019 03:31 jamesmcfarland

Ancestors of the koala lived on the ground, but modern koalas live in trees and eat eucalyptus leaves, which are poisonous to most other animals. the difference between the ancestor and modern koala was caused
a. the presence of homologous structure
b. the presence of vestigial organs
c. selective breeding
d. natural selection

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