The process by which individuals that are better adapted to their environment are more likely to survive and reproduce than other members of the same species.
The gradual change in a species over time.
Another name for selective breeding where humans control the natural selection process
Humans choosing animals with desired characteristics to produce the next generation
a population produces more offspring than the environment can support
When offspring have differences in their traits.
Struggle for existence
Nature making it hard to survive leading to increased natural selection.
Some members reproduce and pass on genes while others don't
The cause of genetic variety
A trait that helps an organism survive
when evolution leads to a new species
A group of organisms that can breed with each other
When a population of organism gets split up allowing them both to evolve differently into two new species.Also called division
When females choose mates based on a trait leading to evolution of that trait.
How well an organism is adapted to its environment
when two species push each other to evolve
Preserved remains of an organism.
The set of fossil scientists use to determine evolutionary relationships
Rock made out of dirt and sand that can contain fossils
Using depth in the rock to guess how old a fossil is.
Using radioactive chemistry to determine exactly how old an organism is.
The Slow and steady evolution with small changes adding up over time.
When evolution happens in sudden changes
When two organisms have similar structures meaning they have a common ancestory