Environmental Science Chapter 5 Review

What is the term for when adaptations occur because of survival of the fittest?

• Genetic drift

• Migration

• Natural selection

What is the term for a stable community that completes the succession process?

• Ecosystem

• Climax community

• Lichens

What causes the change in populations because of human intervention and selective breeding?

• Emigration

• Artificial selection

• Survival of the fittest

Which trophic level are the snakes in?

• First

• Second

• Third

• Fourth

What is the most common way for speciation to occur?

• Because of geographic isolation of populations

• Because of mass extinctions

• Because of disturbances

What is genetic drift caused by?

• Human intervention

• Chance and random events

• Artificial selection

Earth has seen five events of staggering proportions that killed off huge numbers of species at once. What are these called?

• Speciations

• Mass extinctions

• Artificial selection

What does "autotroph" mean?

• Self-feeder

• Carnivore

• Omnivore

True or False: An organism’s niche describes its use of resources and its functional role in a community.

• True

• False

Tags

NGSS.MS-LS2-2

Tolerance is the ability to survive and reproduce under changing environmental conditions. What is the term for organisms with very wide tolerance ranges?

• Specialists

• Generalists