UNIT 3 REVIEW " ECOSYSTEMS"

The biosphere...

• is the biggest habitat on Earth

• is the biggest known biome

• includes all the Earth´s surface

• includes all marine habitats

What is the biocenosis of a pond ecosystem?

• Trees, lizzards, insects

• Squirrels, birds, grasshoppers

• Starfish, seagulls,fish

• Water lilies, ducks, turtles, dragonflies

What´s the function of the decomposers?

• Produce their own food

• cause deforestation

• Eat only herbivores

• Break down the remains of dead organisms

In an ecosystem, the living things are called...

• biocenosis

• biotope

• animals

• habitat

What human activities destroy habitats and ecosystems?

• Pollution and deforestation

• Overfishing and forest fires

• Deforestation and forest fires

• Pollution, overfishing, forest fires and deforestation

Example of an animal that lives in the prairie

• Ducks

• Zebras

• Pigeons

• Foxes

What is a food chain?

• A group of non living things

• The trophic relationships between different organisms

• A group of living thins

• The biotope of an ecosystem

Relationship between individual members of the same specie

• Intraespecific relationships

• Interespecific relationships

• Food chain

• Trophic relationships

Which ones of the following elements are part of the biotope?

• Light, temperature and plants

• Soil, wind, temperature, geographical relief and water

• Water, soil, temperature and fungi

• Soil, bacteries, temperature and geographical relief

Which ones are the decomposers?

• Plackton

• Caterpillar

• Fungi and bacteria

• Leaves