Competition (AQA A-Level Biology): Quizzes

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Which resource is NOT mentioned as one that organisms compete for?

Temperature

What type of competition occurs between individuals of the same species?

Intraspecific competition

How does resource availability affect population size in intraspecific competition?

Through birth and death rates

What do oak trees compete for in dense forests?

Light, water, and soil minerals

What does the competitive exclusion principle state?

Two species can't occupy same niche indefinitely

How do shags and cormorants avoid direct competition?

They eat different types of fish

How many grey squirrels are currently in Britain?

Approximately 2.5 million

In the Paramecium experiment, what happened when P. aurelia and P. caudatum were grown together?

P. aurelia thrived, P. caudatum declined

Why doesn't increased food supply automatically increase population size?

May just produce larger individuals

What makes studying competition in nature difficult?

Many factors affect population size

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