ecology

These cause variations.

• adaptations

• a desire to change

• mutations

• injuries

What is it called when humans decide which traits of an organism are the most desirable and only allow those organisms with the specific, desired traits to breed.

• biological evolution

• evolution by natural selection

• artificial selection

• inbreeding

The change over time in populations of related species.

• biological evolution

• transition

• variation

• adaptation

The English naturalist that developed the theory of how evolution works.

• Charles Darwin

• Charles M. Schulz

• Charles Dickens

• Charles Norris

Organisms with these structures are believed to be closely related.

• analogous structures

• homologous structures

• mutated DNA

• gills

When an organism has a trait that allows it to blend in with its environment, we call that ____.

• mimicry

• camouflage

• lucky

• sonic hedgehog gene

What structure on Tiktaalik links fish to humans?

• gills

• limbs

• embryos

• brain

Organisms with these structures are NOT believed to be closely related.

• homologous structures

• vestigial structures

• analogous structures

• gills

The discovery of DNA and genes proved that

• Darwin was wrong

• mutations create variations and come from genes

• we are all the same species

• bats and butterflies have a very close common ancestor

When an organism of a species has an adaptation, it will compete for resources better, survive longer and pass that adaptation on to it's offspring. This process is called

• evolution by natural selection

• artificial selection

• inbreeding

• outbreeding