Food chains and webs
Energy in the ecosystem
Ecosystems change
Toxins in an ecosystem
Other
100

It consists of all the living and nonliving things in an area.

Ecosystems

100

To survive, all living things need

Energy

100

In this natural disaster living things  that need water die out.

Drought

100

It is a poisonous substance that can harm or kill living things.

Toxin

100
  1.  get their food by eating other living things.

Consumers

200

This shows where the living things get their food from

Food chain

200

Primary consumers eat

producers

200

In this situation native species have to compete for resources.

A new specie

200

It’s when toxines are accumulated in the body of the final consumer.

Bioaccumulation

200

They eat just plants

Herbivores

300
  1. shows the interactions of  animals competing for food.

Food web

300

These are consumers that eat plants and animals:

Omnivores

300

The changes in an ecosystem can be: 

Natural or result of human activity

300

A toxin can be a

Chemical

300

What do the arrows show in a food web?

The flow of energy

400

The rabbit eats grass, the fox eats the rabbit, the eagle eats the fox shows a ....

Food chain

400

All the energy in a food chain comes originally from:

The sun

400

Natural disasters like these destroy all life in an area

wildfires, and floods

400

How do plants absob toxins

Through their roots

400

Which consumer receives the most energy from the sun?

Primary producers

500

The grasshoppers, rabbit and mose eat plants, the fox eats the mouse and rabbit, the eagle and the snake compete for the mouse and rabbit. It is and example of:

Food web

500

They make their own food

Producers ( plants)

500

Changes can affect living and non living things in an area is: True or false

True

500

In which consumers are toxins are more concentrated?

Final consumers

500

What happens with the energy when animals die?

The energy is absorbed by decomposers