Biotic Factors (AQA GCSE Biology Combined Science): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are biotic factors?
What are biotic factors?
Living components of an ecosystem
What do biotic factors help explain?
What do biotic factors help explain?
Changes in population sizes & community structure
What happens when food is plentiful in an ecosystem?
What happens when food is plentiful in an ecosystem?
Population increases
How does a shortage of food affect populations?
How does a shortage of food affect populations?
Causes populations to decline
What can happen when a new predator is introduced to an ecosystem?
What can happen when a new predator is introduced to an ecosystem?
Prey population may decline or face extinction
What are pathogens?
What are pathogens?
Disease-causing organisms
Why can new pathogens devastate a population?
Why can new pathogens devastate a population?
Population may have no immunity to it
When does competition occur between species?
When does competition occur between species?
When they vie for the same resources
What happens if one species is better adapted than another?
What happens if one species is better adapted than another?
It will outcompete the other species
What is a possible outcome of intense competition?
What is a possible outcome of intense competition?
Local extinction of less adapted species