Unit 4 Quiz Review

Natural Selection

100

This man is best known for his theory of Evolution via natural selection.

Darwin

200

Organisms with traits that are better suited to their environment are more likely to survive and pass on those advantages to their offspring. This is called....

Natural Selection 

OR 

survival of the fittest

300

The theory of evolution via natural selection states that all species on Earth evolved from a common "...."

Ancestor

400

Being able to survive and reproduce is called .....

Fitness

500

This factor, plays a huge role in natural selection. 

Environment

Evolution

100

This is a diagram that shows evolutionary relationships

Phylogenetic Tree 

or

Cladogram

200

When an entire species of an organism no longer exists. We say the species is "...."

Extinct

300

Populations can evolve. These cannot.

Individuals

400

These preserved remains of ancient plants/animals provide evidence for evolution

Fossils

500

This is the leading cause of genetic variation.

Mutations in DNA

Evidence of Common Ancestry

100

These are similarities between traits/features in different species

Homologies

200

This type of homology shows structural similarities between organisms (ex. bones, skull shape)

Anatomical

300

This type of homology shows similarities between DNA sequences.

Molecular

400

This type of homology shows common structures in developing embyros

Embryological

500

This is a structure that an organism has, but doesn't use

Vestigial

Misc.

100

Random changes in DNA are called .....

mutations

200

These are advantageous *good* traits that can be passed down to offspring

Adaptations

300

Genetic variation comes from mutations. Mutations can be good, bad, or "....."?

Neutral

400

A group of organisms that can interbreed and produce viable and fertile offspring is called a "...."

Species

500

All living organisms of the same species living in the same area is called a "...."

Population