ecosystems
DESCRIPTION
Here you can find a summary of the Unit 4 contents.TRANSCRIPT
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Ecosystem Interaction between living things and non living
things in a place. Ex: Aquatic, terrestrial.
HabitatI’ts the place where an organism finds the
FOOD, WATER and SHELTER it needs, to live and survive. Ex: ants colony.
BiomeIt is a large area in witch we find the same type of living organisms: animals, plantsand microorganisms. Ex: Desert
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Food ChainThere are three groups: each group eats the
group below .Living things: animals, plants, microorganisms.Producers: they produce their own food. Ex: Grass, trees and plants. Cosumers: They eat grass, plants and trees
(primary C.),other animals (secondary C.)omnivores ( eat plants and animals) Decomposers : They eat dead animals. To obtain energy.
wolf
deer grass
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Producers
HerbivoresPrimary Consumers
CarnivoresSecondary Consumers
OmnivoresThey eat plants and animals
Decomposers
They produce their own food.
AnimalPlatsmicroorganisms
Each group eats the grou below.
FOOD CHAIN
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AQUATIC ECOSYSTEMSAquatic ecosystemS are found in water. Rivers, lakes,
seas and oceans are aquatic ecosystems.There are two
types: fresh water or salt water ecosystem.Rivers: These are cold rivers and warm rivers. In cold
rivers we can find, fish like trout of salmon. In warm rivers you can find fish like pirarucu.
Lakes : a lot of plants and animals live in lakes for example amphibians, duck s and gees.
Seas and oceans: cover most of the Earth surface. Seawater is salty, there is big diversity of animals and plants in oceans and seas.
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IMAGES
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TERRESTRIAL ECOSYSTEMSForests:
* They have a lot of trees because of RAIN and TEMPERATURE.* In forests we can find: - Decidious trees ( fulla caduca) - Evergreen trees (fulla perenne)
* They are divided in : - Temperate forests: there are four seasons. - Tropical forests: it is hot all year.
Grassland:* The plants are grasses.* They have long periods of rain and periods of drought (sequera)* There aren´t enough water to be a forest.* They are divided in: - Prairies: They have four seasons. - Savannah: It rains a lot. There animals like giraffes, zebras…
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Deserts:Deserts are hot an dry.Desert cover 20% of surface.Temperature in deserts experience great variations.Plants and animals that live in deserts adapt to
survive in this extreme conditions.
Tundra:They are cold areas covered with ice. The soil that is permanently frozen, it is called
permafrost. Trees cannot live in frozen soil , so there are no
trees. Plants grow during the summer, when the light of the
sun partially melts the surface of the ground.