National 5 Biology Unit 3: Distribution of Organisms Quiz

What are abiotic factors?

• Factors that are only found in aquatic environments

• Factors related to human activities

• Non-living variables that influence where organisms live

• Living variables that influence where organisms live

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

• Disease

• Predation

• Competition for resources

• Light intensity

What tool is used to measure light intensity?

• pH meter

• Thermometer

• Light meter

• Moisture probe

How can you avoid inaccurate readings when using a light meter?

• Use it under a tree

• Ensure no shadows are cast on it

• Cast a shadow over it

• Use it only at night

What is a common issue when measuring soil moisture with a probe?

• The probe might not reach the soil

• The probe might overheat

• Soil left on the probe can affect readings

• The probe might break

What are biotic factors?

• Factors related to climate change

• Living factors that influence where organisms live

• Non-living variables that influence where organisms live

• Factors that are only found in deserts

Which of the following is a biotic factor?

• Temperature

• Moisture level

• Predation

• Soil pH

What is a quadrat used for?

• Counting the abundance of plants

• Measuring soil pH

• Measuring light intensity

• Sampling small invertebrates

How should quadrats be placed to ensure accurate results?

• Randomly

• In areas with the most plants

• Near water sources

• In shaded areas

What is a pitfall trap used for?

• Counting plant abundance

• Sampling small invertebrates

• Measuring soil moisture

• Measuring air temperature