Interactions in the Environment (Grade 11 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the three main types of interactions between organisms in ecosystems?
What are the three main types of interactions between organisms in ecosystems?
Predation, competition, symbiosis
Why must predators be heterotrophic organisms?
Why must predators be heterotrophic organisms?
They cannot make own food, must consume
In predator-prey cycles, which population increases first?
In predator-prey cycles, which population increases first?
Prey population increases first
Why do predator populations respond with a delay to increasing prey numbers?
Why do predator populations respond with a delay to increasing prey numbers?
Reproduction & maturity take time
What is intraspecific competition?
What is intraspecific competition?
Same species compete for resources
What does the competitive exclusion principle state?
What does the competitive exclusion principle state?
Two species can't occupy same niche
How do giraffes, kudus, and duikers avoid competition in resource partitioning?
How do giraffes, kudus, and duikers avoid competition in resource partitioning?
Feed at different heights
In a mutualistic relationship, what happens to both species involved?
In a mutualistic relationship, what happens to both species involved?
Both species benefit
Which example best demonstrates commensalism?
Which example best demonstrates commensalism?
Barnacles on whales for transport
What distinguishes ectoparasites from endoparasites?
What distinguishes ectoparasites from endoparasites?
Location on/in host body