Practise MYP Biology questions on 7.2 Competition 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.
The evolution of different beak shapes in Darwin's finches to exploit different food sources is an example of:
Which of the following is a physical adaptation that might determine the winner of interspecific competition?
How does intraspecific competition help regulate population size?
What is the primary reason why intraspecific competition intensifies as population size increases, even if the environment remains unchanged?
In a forest where different bird species feed at different heights—some in the canopy and some in the understory—they are demonstrating __________ partitioning.
Temporal partitioning
Evolutionary divergence
Intraspecific regulation
Local extinction
Rapid growth rate or larger size
Territorial vocalizations
Efficient digestion of a specific food
Tolerance to low water levels
By ensuring all individuals receive equal resources
By causing weaker individuals to fail to reproduce
By increasing reproductive success as density rises
By eliminating the need for niche specialization
The species evolves into different niches
More individuals place greater demand on the same fixed resources
The organisms become more aggressive toward other species
Environmental conditions always degrade as populations grow
resource
intraspecific
temporal
physiological
