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Theories of Evolution

Across
Members of the same species living in the same area
Speies produce many more organisms than can survive and reproduce
The process of evolution through slow change
All the genes in a population
Species remains unchanged for millions of years, then within a short period of time certain species die off while other species suddenly appear.
Organisms with traits that make them well adapted to their environment
The ship Darwin was on
Differences among organisms
The remains of organisms from long ago
Movement of members of a species into or out of a population
Down
A person who studies nature by observing plants and animals
Differences among traits
The process by which organisms with certain traits have a better chance of surviving and reproducing
Organisms competing for limited resources like food, water, and place to live
A change in the structure of a gene or chroosome
Islands Darwin visited
Development of new species
The process by which organisms change over time
When a group of organisms become isolated from other members of its population