Basic Ecosystems

An organism that creates it's own food rather than eating another organism to obtain energy is called what?

• Primary consumer

• Decomposer

• Producer

• Secondary consumer

This kingfisher is a .... (tick the two that apply)

• Consumer

• Carnivore

• Producer

• Herbivore

An ecosystem is a community of living organisms interacting with each other and _________ components in an environment

• abiotic

• biotic

• organic

• natural

What is it that shows the complex interrelationships between different organisms within an ecosystem?

• Food chain

• Flow diagram

• Food web

An example of a small scale ecosystem in the UK is...

• Deciduous woodland

• Alpine (mountain)

• Pond

• Tundra

Arrows in a food chain or food web show the transfer of _________ from one organism to another as it is consumed (eaten).

Which of these are apex predators (tick all that apply)?

• Siberian tiger

• Bottle nosed dolphin

• Kingfisher

• Polar bear

As you move up a food chain or food web, what happens to the number of organisms at each level (the biomass)?

• Increases

• Decreases

• Stays the same

Which type of organism is responsible for breakdown dead plants and animals and returning essential nutrients to the soil?

• Decomposers

• Producers

• Consumers

• Apex predators

A disease called myxomatosis kills 90% of rabbits in this ecosystem. Which of the follow would then be true?

• Number of foxes would increase

• Number of foxes would decrease

• Carrot farmers suffer lots of pest damage

• Carrot farmers would enjoy a large harvest