When a species no longer exists.
extinction
Name this process: over many generations, a species will adapt to its environment because the animals with the most successful variation are more likely to survive and pass genes.
ADAPTATION
Humans and chimpanzees share a common __________.
ancestor
This is the process by which organisms change gradually over time to form new or different species.
Evolution
What are the "buildings blocks of life"?
cells
A group of organisms that are similar to each other and can successful make fertile offspring.
species
A random change in DNA is called a __________.
mutation
What is selective breeding?
When humans choose members of a species to breed for specific traits.
A trait or characteristic that increases an organism's ability to survive, and therefore reproduce
adaptation
The preserved remains of an organism, part of an organism, or trace of an organism.
fossils
"Survival of the fittest" is one of Darwin's principles of _________
evolution
What is a gene?
short sections of DNA that code for a characteristc
Who were the 3 scientists that discovered DNA? (last names only is OK)
Watson, Crick, Franklin
What is genetic variation?
when the members of a species have unique DNA