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Ahmad Baumbach ∙
Evolution began 3 billion years ago, when the first life forms appeared on Earth.
it stops gene flow
hominids
dodo bird
A big meteor is said to have landed on earth which killed all the existing Dinosaurs.
They had a large variety of farm products
Disruptive
b
Approximately how long have Homo sapiens been on earth, according to the fossil record
Which of these is not a reason that species become extinct
Birds are thought to be direct descendents of reptiles