GCSE - Ecosystems Introduction (LD)

An ecosystem is

• A system which exists in a place, which is linked to ebiotic and biotic components

• A living community of floretts and fauna which is linked to the natural environment in which they live

• A living community of flora and fauna which is linked to the natural environment in which they live

• An organisation of ecological things

What is a global ecosystem known as?

• A global system

• A biome

• A biosystem

• A bioglobal system

Living organisms such as plants and animals in an ecosystem are known as what?

• Biotic components

• Abiotic components

• Producers

• Consumers

What are non-living things in ecosystems, such as soil and water, known as?

• Biotic components

• Consumers

• Abiotic components

• Producers

Which of the following are spheres of the earth?

• Iconsphere

• Cubosphere

• Hydrosphere

• Atmosphere

The transfer of nutrients through an ecosystem is known as what?

• Food web

• Food cycle

• Food chain

• Nutrient cycle

What shows the flow of energy from producer to tertiary consumer?

• Food chain

• Nutrient cycle

• Food web

• Food cycle

These break down dead plants and animals.

• Composers

• Decomposers

• Producers

• Biotic components

Which of the following is an ability of organisms?

• To reproduce

• To survive

• To exist

• All of the answers

The branch of science dealing with the relations and interactions of organisms and their environment

• Physics

• Chemistry

• Ecology

• Biology