Web of Wildlife Food and food chains All living things need food to - - PowerPoint PPT Presentation

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web of wildlife food and food chains
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Web of Wildlife Food and food chains All living things need food to - - PowerPoint PPT Presentation

Aug 24, 2023 146 likes •347 views

Web of Wildlife Food and food chains All living things need food to survive. Organisms obtain their food in different ways. Some animals eat plants, some eat other animals. The feeding relationships between animals and plants in a

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Web of Wildlife

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  • All living things need food to survive.

– Organisms obtain their food in different ways. − Some animals eat plants, some eat other animals.

Food and food chains

  • The feeding relationships between animals and plants

in a habitat can be described with a food chain.

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PREDATOR PREY

  • Can you think what these words mean?

Lion Thomson’s gazelle

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HERBIVORE CARNIVORE

  • Can you think what these words mean?

Cheetah Koala

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HERBIVORE: an animal which only eats plants.

Koala Rabbit

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CARNIVORE: an animal which eats meat (other animals).

Cheetah Fox

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OMNIVORE

  • What about this word?
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OMNIVORE: an animal that feeds on both plants and

  • ther animals.
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  • Can you think of any animals that eat plants?
  • Can you think of any animals that eat other animals?
  • How do plants get their food?
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What is a food chain?

  • Food chains show what eats what in a particular habitat.
  • All food chains start with a PRODUCER.

Grass Rabbit Fox

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What is a food chain?

Grass

PRODUCER: An organism, usually a green plant, that uses photosynthesis to turn sunlight, water and carbon dioxide into sugars (energy).

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Rabbit Fox Grass

CONSUMER: an animal in a food chain that eats (consumes) a plant

  • r another animal.
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What is a food chain?

  • The links between animals and plants in a habitat can be

demonstrated by drawing a food chain.

Grass Rabbit Fox The arrow in a food chain means ‘is eaten by’. What do you think the arrow means between the pictures?

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Producer Consumer

PRODUCERS  Plants are called producers because they make (produce) their

  • wn food.

CONSUMERS  Animals are called consumers because they eat (consume) other plants and animals.

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Rabbit Fox Grass

PRIMARY CONSUMER SECONDARY CONSUMER

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PRIMARY CONSUMER: An animal at the second level in a food chain which feeds on the producer. Primary consumers are usually herbivores, feeding on plants and fungi. SECONDARY CONSUMER: An animal at the third level in a food chain. Secondary consumers are usually carnivores and prey on other animals. TERTIARY CONSUMER: An animal at the third level of a food chain. This is usually the top level, and so most tertiary consumers are considered to be ‘apex predators’.

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A simple British woodland food chain

PRIMARY CONSUMER SECONDARY CONSUMER PRODUCER CONSUMER CONSUMER HERBIVORE CARNIVORE PREY PREDATOR

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A British woodland ‘food web’ Grass Rabbit Fox Grasshopper Lizard Sparrowhawk Blue tit

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A British woodland ‘food web’ Grass Rabbit Fox Grasshopper Lizard Sparrowhawk Blue tit