Living Evidence and homologous structures

What is evolution?

• An increase in complexity over time

• The tendency of species to improve over time

• Any change to the genetic composition of population

• All of the above

Tags

NGSS.HS-LS4-1

Since fossils don't contain DNA, how else can scientists figure how closely related organisms are?

• They get DNA from other humans to test on those organisms

• They look at the physical features of each organism and compare them.

• They find the common ancestor

• They ask there fellow scientists for the answer

Tags

NGSS.HS-LS4-1

In order for Mutation to affect evolution, it must do what?

• Provide a benefit to the organism

• involve more than one chromosome

• be able to get passed down from parent to offspring

• be neutral- neither help nor harm the organism

Tags

NGSS.HS-LS3-2

NGSS.HS-LS4-2

What is the name of an organism that is closely related to the group you're interested in, but not apart of it. A way to establish a basis of comparison for an trait analysis." This is the definition of:

• An ancestor

• A marker

• An outgroup

• A stem group

What are non functional parts in organisms called

• Vestigial organs

• Non-usable organs

• Vest organs

• the lungs