beak size of the finches was influenced by this
what is food source?
What animals did Charles Darwin observe that helped lead him to his theory of evolution- and what did he notice about these animals?
finches beaks or tortoise shells
A theory (explanation) supported by evidence for how populations change over time
What is evolution?
Type of diagram that shows the relationship of organisms to their ancestors as well as common ancestry.
phylogenetic tree
father of evolution
who is Charles darwin?
enough differences accumulate between two populations that they can no longer interbreed
what is speciation?
something incorrect about Lamarck's theory
traits acquired during lifetime and passed down to next generation
A mule and a liger are examples of this and they are not ____
hybrids and are not fertile
The process whereby organisms that have advantages survive and pass their genes onto their offspring.
natural selection
The random appearance of a new trait in an organism.
what is a mutation?
rapid random changes in gene pool frequencies
genetic drift
pan resistance comes from these 2 common factors
overuse of antibiotics and having genetic variety