Biology Test Conservation Biology 2

Question 1

Which term describes the process by which a species' population becomes so small that it loses genetic diversity and faces increased extinction risk?

Accepted Answer

Genetic bottleneck

Answer

A genetic bottleneck occurs when a population is drastically reduced, causing loss of allelic diversity and increasing vulnerability to extinction.

Question 2

What is the primary goal of an Endangered Species Recovery Plan in the US?

Accepted Answer

Restore species populations to sustainable levels so ESA protections can be removed

Answer

Recovery plans aim to restore wild populations to the point where they no longer need the protections provided by the Endangered Species Act.

Question 3

Which landscape feature most effectively connects isolated habitat patches to reduce extinction risk from fragmentation?

Accepted Answer

Wildlife corridors

Answer

Wildlife corridors link fragmented habitats, allowing animals to move between patches, find mates, and maintain gene flow.

Question 4

The concept of 'ecosystem services' in conservation biology refers to:

Accepted Answer

Benefits that ecosystems provide to humans such as clean water and pollination

Answer

Ecosystem services are the direct and indirect benefits humans receive from functioning ecosystems, including clean air, water filtration, and crop pollination.

Question 5

Which measurement best captures the overall health and productivity of a conservation area?

Accepted Answer

Biological integrity index based on native species composition and function

Answer

Biological integrity indices assess how closely an ecosystem resembles its undisturbed natural state based on native species and ecological processes.

Biology Practice Test

Biology Practice Test

Biology Test Conservation Biology 2