Biodiversity is the total variation between all living things and can be measured to help identify species that need to be supported. Threats to biodiversity have adverse effects on the ecosystem.
What is meant by the term extinction?
When numbers of an organism decrease but the species recovers
When a species does not adapt to the environment and so fails to survive
When a species does not adapt but continues to survive
Which of the following is not a measurable factor of biodiversity?
Which of the following best describes what biodiversity measurements are used for?
To monitor ecosystem change and help decide on which species need support
To monitor habitat changes and help improve the habitat
To monitor species and help the ecosystem in which they live
Which of the following examples is a threat to biodiversity?
Which of the following is not an example of overexploitation?
What is habitat fragmentation?
The habitat grows in size
The habitat is broken into smaller sections
The habitat joins with another habitat
How is habitat fragmentation overcome?
The bottleneck effect
Linking fragments with habitat corridors.
Which of the following terms describes a species that is non-native and established?
What is the name of the threat to biodiversity that has caused the coniferous forests in the Northern hemisphere to invade tundra areas?
What is the consequence of a bottleneck effect on species?
Surviving population has space to thrive
Surviving population struggles to survive and adapt due to small gene pool
Surviving population affirms its dominant characteristics because of forced inbreeding