Biosphere Bonanza
What is a population?
A group of organisms of the same species living together.
State a physical factor influencing ecosystems.
Temperature/water availability/amount of sunlight/amount of nutrients and minerals/any valid answer.
What are the two types of adaptive traits an organism could have?
Structural and behavioural adaptive traits.
What does a food chain tell us?
The flow of nutrients and energy between organisms in an ecosystem.
What are the three interrelations we have covered?
What is a community?
Populations of different species living together.
State three physical factors influencing ecosystems.
Temperature/water availability/amount of sunlight/amount of nutrients and minerals/any valid answer.
What is an example of a structural adaptation in an organism?
Camouflage/mimicry/sharp claws/any valid answer.
List the different roles in a food chain.
Producer, primary consumer, secondary consumer, tertiary consumer.
Which interrelation is shown by this example?
Mosquitoes transmit diseases such as malaria and dengue fever to humans while drawing blood.
Parasitism
What is an ecosystem?
Living organisms interacting with each other and their physical environment.
Sunlight is a physical factor in ecosystems. Why is it essential?
Plants require sunlight to photosynthesis and make food. This is the energy source for ecosystems.
What is an example of a behavioural adaptation in an organism?
Migration/hibernation/burrowing/cooperative hunting/any valid answer.
What is an example of a producer?
Grass/any valid answer.
Which interrelation is shown by this example?
A lichen consists of fungi and algae living together. The fungi provide a protective structure while algae perform photosynthesis.
Mutualism.
What does conservation mean?
Sustainable management and preservation of natural resources and ecosystems for future generations.
State two human activities that negatively impact the environment.
Deforestation/urbanisation/burning of fossil fuels/usage of motor vehicles/any valid answer.
What is an adaptive trait for a desert environment?
Parts to store water/nocturnal to avoid heat/any valid answer.
Draw a food chain with three organisms
Grass > rabbit > hawk/any valid answer.
What is an example of mutualism?
Bees pollinating flowers/any valid answer.
What are two things we can do to help conserve the environment?
Use reusable bags instead of plastic bags/reduce plastic waste/take public transport instead of private transport/any valid sustainable practice answers.
State a human activity that negatively impacts the environment and explain.
Deforestation results in fewer trees to absorb carbon dioxide in the atmosphere.
Give an example of an organism and an adaptive trait that helps it survive in its environment. Explain how the adaptive trait aids in its survival.
Polar bears have thick fur to keep them warm in the Arctic/any valid answer.
Draw a food chain with four organisms.
Grass > grasshopper > rat > hawk/any valid answers.
Give an example of an interrelation and explain how each organism benefits or is harmed.
Fleas and dogs share a parasitic relationship. Fleas feed on the blood of dogs, gaining energy while causing irritation and itching to the dogs./Any valid answer.