Evolution pt. 2 test review

Genetic drift is more likely to happen in...

• large populations

• small populations

• older populations

Genetic drift (bottleneck or founder) tends to ___________ genetic variation (diversity).

• Increase

• Decrease

Genetic drift is change in the allele frequency of a population due to...

• random chance

• natural selection

• artificial selection

What is a mass extinction?

• When all the species in a particular area on earth suddenly go extinct
• When multiple species from all over the earth suddenly go extinct 
• When one species goes extinct due to habitat changes
• When all life on earth is wiped out 

Tags

NGSS.HS-LS4-5

Describes a patter of long, stable periods interrupted by brief periods of more rapid change

• convergent evolution
• coevolution
• punctuated equilibrium
• adaptive radiation

The hypothesis that evolution of a species occurs in periods of rapid change separated by periods of little or no change is called

• divergence
• gradualism
• punctuated equilibrium
• isolation

What is convergent evolution?

• evolution toward similar traits in unrelated species
• evolution toward different traits in closely related species
• elimination of a species from Earth
• the rise of two or more species from one existing species

Tags

NGSS.HS-LS4-4

Sharks and dolphins both have streamlined bodies that allow them to move through water efficiently, this is an example of which type of evolution?

• Divergent
• Coevolution
• Convergent
• Artificial

Tags

NGSS.MS-LS4-2

In convergent evolution, organisms share physical similarities because they 

• have a common ancestor
• live in similar environments
• develop homologous structures
• are closely related 

Tags

NGSS.MS-LS4-2

An antibiotic is...

• A chemical that kills a bug / insect

• A substance that kills bacteria

• A chemical that destroys any toxins in the stomach

• A substance created by biotechnology to induce mutations in bacteria