3.3 - Test mistakes

Question 1

Why do we need to maintain biodiversity?

Answer 1

Loss of biodiversity means fewer species.
Endemic species being lost leads to extinction.
Species remain undiscovered.

Question 2

Benefits of in-situ conservation.

Answer 2

Doesn’t involve removing species from their natural ecosystems.
Less disruptive and doesn’t lead to behavioural change.

Question 3

Risks of in-situ conservation.

Answer 3

Species still at risk to predation, poaching and natural disasters.
Habitat may be too fragmented to ensure their safety

Question 4

Benefits of ex-situ conservation.

Answer 4

Protection from predation and poaching.
Selective breeding processes may occur.

Question 5

Risks of ex-situ conservation.

Answer 5

Costly method of conservation
Hard to replicate a similar environment

Question 6

How may a captive breeding programme in 6 different zoos ensure that biodiversity is maintained within a species?

Answer 6

Initially low gene pool
Captive breeding will increase the population
Zoos select mates
Prevents inbreeding
Avoids genetic drift

Question 7

A zoo attempts to develop a captive breeding programme with 2 male and 2 female organisms, what problems will they face?

Answer 7

Small population
Small gene pool
Low genetic diversity
Problems with potential interbreeding