How do living beings obtain food?

• Producers• Consumers

• Animals.• They feed on organic

matter produced by other beings.

• They are autotrophic.• They make their own

organic matter.• Plantas• They are heterotrophic.

How do living beings obtain food?

• Primary consumers

• Secondary consumers

• Carnivores.• Herbivores.• They feed on producers.• They feed on primary

consumers.

How do living beings obtain food?

How do living beings obtain food?

How do living beings obtain food?

Food chains show how living beings get their food and how energy is transferred from one creature to the next. Food chains always begin with plants and end with large animals.

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FOOD CHAIN• The arrows in a food chain show the

transfer of food energy from organism to organism.

What would happen if there were fewer or no snakes?

What would happen if there were more snakes than normal?

What would happen if we introduce eagles?

http://www.youtube.com/watch?v=iasmwZQr-nc&feature=player_embedded

CONCLUSION: We should take care of balance in ecosystems

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Food chain is a very simple representation, it isn’t real.

So, let’s see FOOD WEBS

A food web gives a more complete information of who eats what. Food webs are made of many food chains linked toguether.

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Most animals eat more than one thing.If one kind of food runs out, they will survive by eating something else.

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A food web gives a more complete information of who eats what.Most animals eat more than one thing.If one kind of food runs out, they will survive by eating something else.Food webs are made of many food chains linked toguether.

If the rabbits are removed…1. Who would be eaten due to less competition?2. Who would increase in number due to not being eaten?3. Who would go hungry due to their food source being

removed?

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Parasite ProducerBiocenosisCommensalismFood webPreyEnvironmentMutualismIntraspecific

Ecology.Food chainBiotopeConsumerInterspecificPredatorHerbivoresEcosystemCompetition

BINGO