Ecosystems Quiz

What is an ecosystem?

• All the organisms and non-living components of an area

• All the organisms of an area

• All the non-living components of an area

What name is given to all organisms living in a particular area?

• Community

• Ecosystem

• Population

Which of the following is an example of an abiotic factor?

• Grazing

• Predation

• Temperature

Which of these pieces of equipment can be used to measure an abiotic factor?

• Light meter

• Pitfall trap

• Quadrat

Competition, disease, light availability and temperature are some factors associated with an ecosystem. Which factors are biotic?

• Competition and disease

• Disease and light availability

• Light availability and temperature

Between which two organisms does competition occur?

• Two organisms that are attempting to use different resources that are in short supply

• Two organisms that are attempting to use the same resource that is in short supply

• Two organisms that are attempting to use the same resource that is in limitless supply

For what do plants usually compete?

• Light only

• Light and soil nutrients only

• Light, soil nutrients and carbon dioxide

Which piece of equipment can be used for estimating the number of plants in an area?

• Light meter

• Pitfall trap

• Quadrat

What is the most likely reason why grass grows abundantly in a field but not in a wood?

• The woodland animals have eaten all the grass

• The wood will be too sheltered from the wind

• There is a higher light intensity in the field for photosynthesis

How can a representative sample of the plant species growing in a field be obtained?

• By placing a quadrat at random at many different locations around the field

• By placing many quadrats at random in one corner of the field

• By placing a quadrat at random in one corner of the field