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They are evolving
The egg came first. It is believed that a genetic mutation in a prehistoric bird laid an egg with a slightly different genetic makeup, which eventually lead to the evolution of the modern chicken.
Most scientists believe our common ancestor existed 5 to 8 million years ago. Then two species broke off into separate lineages, one ultimately evolving into gorillas and chimps, the other evolving into early humans called hominids.
Extinction
Symbiosis
You can learn how these species have been evolving.
Equilbrium bro
Interspeciation is the process of new species evolving from species that are already in existence. An example of this would be the new designer dogs.
is is overproduction
Molecular Clock
This is a derived adaption.
Evolution is a theory that all species are constantly evolving. It states that evolving can be faster in certain circumstances. Random events, especially geographical, are one of these cicumstances.