FREE Ecology Biodiversity & Conservation Questions and Answers

Question 1

Which of the following terms describes the variety of life in the world or in a particular habitat or ecosystem, encompassing genetic, species, and ecosystem diversity?

Accepted Answer

Biodiversity

Answer

Biogeography

Answer

Bioaccumulation

Answer

Biomagnification

Question 2

A conservation biologist is working to protect an endangered fish species found only in a single, isolated lake. The population is critically small and shows signs of inbreeding depression. Which conservation strategy would be most effective in immediately addressing the genetic health of this population?

Accepted Answer

Introducing individuals from a genetically distinct population of the same species.

Answer

Establishing a new protected area around a different, larger lake.

Answer

Focusing solely on reducing pollution in the current lake habitat.

Answer

Implementing a captive breeding program with individuals solely from the current lake.

Question 3

Which of the following is considered a 'hotspot' for biodiversity?

Accepted Answer

A region with a high concentration of endemic species and significant habitat loss.

Answer

An area with consistently low average temperatures and sparse vegetation.

Answer

A large, undisturbed wilderness area with few human inhabitants.

Answer

A highly industrialized region with extensive agricultural land.

Question 4

The conversion of natural habitats into agricultural land, urban areas, or infrastructure is widely recognized as the leading cause of biodiversity loss globally. This phenomenon is best described as:

Accepted Answer

Habitat fragmentation and destruction

Answer

Pollution

Answer

Climate change

Answer

Overexploitation

Question 5

What is the primary goal of establishing a 'corridor' between isolated protected areas?

Accepted Answer

To facilitate gene flow and movement of wildlife between populations.

Answer

To increase tourism revenue in both areas.

Answer

To prevent the spread of invasive species.

Answer

To provide a buffer zone against industrial development.

Question 6

A keystone species is defined by its disproportionately large effect on its natural environment relative to its abundance. Which of the following scenarios best illustrates the ecological importance of a keystone species?

Accepted Answer

A top predator whose removal leads to a trophic cascade and significant ecosystem changes.

Answer

A common herbivore that consumes a wide variety of plants.

Answer

A highly abundant producer that forms the base of a food web.

Answer

An invasive species that outcompetes native species for resources.