Year 7 Ecosystems

True or false:

A food web consists of several food chains.

• true

• false

True or false:

A pyramid of numbers is usually wide at the base and narrow at the top.

• true

• false

What name is given to the type of organism always found at the beginning of a food chain?

• producer

• carnivore

• consumer

Complete:

Animals that eat other animals are known as ___.

• predators

• prey

• herbivore

• carnivore

True or false:

A population is a number of organisms of the same species living in one place.

• true

• false

Complete:

Food chains show the flow of ___ between organisms.

• food

• energy

• particles

• matter

Complete:

Animals that only eat plants are known as ___.

• herbivore

• carnivore

• omnivore

What term is given to the place where an organism lives?

• ecosystem

• habitat

• den

• home

Complete:

___ can increase in concentration along food chains, which can have a negative effect on animals further along the food chain. This is known as bioaccumulation.

• herbicides

• pesticides

• weedkiller

True or false:

Examples of abiotic [i.e. non-living] factors include light intensity, pH and temperature.

• true

• false