Measuring the size and distribution of populations of organisms | Starter Quiz | Oak National Academy

What do we call a survey of plants and/or animals which provides information about the populations of organisms?

Answer explanation

The correct answer is that sampling is a survey of plants and/or animals which provides information about the populations of organisms.

Light intensity is an example of ...

• a biotic factor

• an abiotic factor

• a factor that is both biotic and abiotic

Answer explanation

Light intensity is not living. So, the light intensity of a habitat is an abiotic factor.

Which of the following pieces of apparatus would be useful to sample small organisms on the leaves of a tree?

• quadrat

• kick net

• pitfall trap

• pooter

Answer explanation

The correct answer is a pooter.

What piece of equipment might be used to sample plants and slow-moving animals?

• pooter

• quadrat

• pitfall trap

• nets

Answer explanation

A quadrat is used to sample plants and animals that are slow-moving or sedentary.

Match the following words with their definitions.

• biomass

• the range of different living organisms (species) that live in a place

• biodiversity

• when the person carrying out an investigation affects the outcome

• adaptation

• a feature that helps an organism to survive in a habitat

• bias

• the mass of living material in one or more organisms

Answer explanation

Adaptations are features that help an organism to survive; bias is when a person carries out an investigation and affects the outcome; biodiversity is the range of different species in a habitat; biomass is the mass of living material in organisms.

A habitat provides organisms with food, shelter and a place to live. Which of the following might be the habitat of a robin?

• a rock pool

• a garden

• a compost heap

• a wildflower meadow

Answer explanation

A robin would live in a garden. The other habitats do not provide the robins with all of the things they need.