Ecology - AQA GCSE Biology topic 7

What is a population?

• All the organims of one species living in a habitat

• The place where an organism lives

• The different species living in a habitat

• The interaction of a community of living organisms with the non-living

What is an ecosystem?

• The place where an organism lives

• All the organisms of one species living in a habitat

• The populations of different species living in a habitat

• The interaction of a community of living organisms with the non-living

What do animals need in order to survive and reproduce?

• Space

• Light

• Food

• Water

• Mates

What do plants need in order to survive and reproduce?

• Light

• Space

• Mates

• Water

• Mineral ions (nutrients)

What are abiotic factors?

• Moisture

• Competition

• New pathogens

• Soil pH

Which of these are structural adaptations?

• Camouflaged fur

• Hibernation

• Thick layer of fat

• Producing little sweat

What is the term used to describe microorganisms that are adapted to live in very extreme condition?

(a)  

What is at the start of a food chain?

• Producer

• Primary consumer

• Secondary consumer

• Tertiary consumer

A (a)   is a square frame enclosing a known area

What environmental factors can affect the distribution of organisms?

• Temperature

• Availability of water

• Composition of atmospheric gases