Ecosystems

Which food chain is in the right order?

• Shrimp - alga- hake (gamba, alga, merluza)

• Alga- hake. shrimp

• Alga- shrimp- hake

Temperature and light...

• ..are non-living things in an ecosystem.

• .. are living beings in an ecosystem.

• .... are not part of the ecosystem.

Which sentence is correct?

• Sunlight penetrates to a depth of 1000 metres into the sea.

• There are more living things the deeper you go.

• There are less living things the deeper you go.

Look at the photos. How will they affect living things?

• The number of living things will increase (go up).

• There will be no change at all.

• The number of living things will go down.

Read these sentences and choose the correct ones:

• Plants and algae are producers in an ecosytem.

• Secondary consumers in an ecosystem are always hervibore.

• Decomposers are essential to ecosystems.

• Food chains always start with a decomposer.

• Food webs are made up of many food chains.

Plants are...

• primary consumers

• secondary consumers

• producers

• decomposers

What does an omnivore eat?

• Animals' meat

• Fishes

• Plants

• All the answers are correct

What do you see?

• Food chain

• Food web

Which terrestrial ecosystem is typical from North Asia, Europe and America, has low temperatures in winter and evergreen trees?

• Cold deserts.

• Savannahs

• Temperate forests.

• Taiga

• Rainforest.

Which terrestrial ecosystem has high temperatures all year long, a wet season and a dry season?

• Hot desert.

• Savannah

• Rainforest

• Temperate forest.