Unit 2 Quizizz Combined COVID

 Genetic Drift is more likely to happen in... 

• aquatic populations
• small populations
• terrestrial populations
• older populations

A change in the genetic composition of a population as a result of descending from a small number of colonizing individuals is called:

• founder effect
• bottleneck
• genetic drift
• gene flow

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

• Increase

• Decrease

• Stabilize

• Exaggerate

Which of the following is an example of the bottleneck effect?

• Cheetah populations reach their lowest levels with reduced diversity and as they rebound are so genetically similar they appear to be inbred.
• Affected individuals with blue skin can trace their ancestry back to one of the first settlers in the region.
• The environment of a fox population changes and over time foxes who are white survive and pass on their genes to their offspring.
• Humans choose two dogs they like the characteristics of and breed them together.

Which is true of the location above?

• It has low species richness

• It has low species evenness

• It has high species evenness

• It has both low species evenness and richness

• None of these

Which is true of the location above?

• It has high species evenness

• It has low species evenness

• It has low species richness

• It has both low species evenness and richness

• None of these

Which habitat has the highest species richness?

• A

• B

• C

• More information is needed

Ecosystems provide the conditions for growing food.

• Provisioning

• Regulating

• Supporting

• Cultural

Habitats provide everything that an individual plant or animal needs to survive: food; water; and shelter.

• Provisioning

• Regulating

• Supporting

• Cultural

Ecosystems and biodiversity play an important role for many kinds of tourism which in turn provides considerable economic benefits and is a vital source of income for many countries.

• Provisioning

• Regulating

• Supporting

• Cultural