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