Practise MYP Biology questions on 8.1 Habitat Change or Destruction and review the explanations to check your understanding.
Use these questions for topic practice and to find ideas you want to revisit in your notes or lessons.
Why do ecosystems with higher biodiversity generally exhibit greater resilience following a disturbance?
Which of the following is the defining characteristic that distinguishes a 'habitat shift' from 'habitat degradation'?
True or False: An ecosystem's resilience is determined solely by abiotic factors like soil condition and temperature, while the biological community has no influence on recovery speed.
The process of clearing a forest canopy to make room for agriculture is best classified as __________.
Why are ecosystems with highly complex food webs sometimes more vulnerable to collapse if a single key component is altered?
Higher biodiversity prevents any abiotic changes from occurring in the first place
Biodiverse ecosystems do not contain keystone species that could fail
Species in biodiverse ecosystems always have faster reproductive rates
They have more species available to fill empty niches and perform essential functions
The complete removal of all organic matter from the soil
The transformation of the environment into a fundamentally different ecosystem type
A temporary reduction in the population size of a single species
A decline in the density of the existing vegetation
True
False
Ecological resilience
Habitat degradation
Habitat loss
Secondary succession
The high level of interdependence means a disruption in one link can ripple throughout the entire network
High complexity prevents species from moving or adapting to new conditions
Complex webs consist mostly of slow-growing, large organisms
Complex food webs are only found in areas with very poor soil quality
