Monday, January 26, 2009

The food web
















Energy to live: In order to live animals need energy.
Some animals get the energy they need to live from eating plants and other vegetation.
Some animals get their energy from eating other animals.
Some animals eat both plants and other animals.
Herbivores: Animals that eat plants are called Herbivores.
Herbivores have evolved to eat plants.
They have specialised teeth and stomachs to enable them to get the energy they need from plants.
Carnivores: Animals that eat plants are called Carnivores.
Carnivores have evolved to eat meat.
They have specialised teeth and stomachs to enable them to get the energy they need from the bodies of other animals.
Omnivore: Animals that eat plants and meat are called Omnivores.
Humans are omnivores.
Omnivores have teeth and stomachs that enable them to eat and digest both plants and meat.
Food Web: Food webs show what eats what in order to gain the energy it needs to live.
Food webs use arrows to show what eats what.
grass zebra lion
Producers: Nearly all food webs start with a green plant.
Green plants are called producers because they produce their own food.
Consumers: Animals are consumers.
Some consume plants to get the energy they need to live.
Others consume other animals.
Prey: Animals that are eaten by other animals are called prey.
Some prey animals are herbivores.
Some omnivores and carnivores are also prey to other animals.
Predators: Animals that eat other animals are called predators.
Some animals are predators and prey.
This means they eat some animals but are eaten by others.
The top predator that is prey to no other animal is called an apex predator.


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