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Unit 6 the biosphere
1.
2. WHAT´S THE BIOSPHERE ?
* The biosphere is the largest ecosystem
because it is made up of planet Earth
and all the living things that inhabit it.
3. FOOD CHAIN
Food chains are connected to one another
by their food relationships.
4.
5. Living things that
produce their own
food from sunlight,
water and minerals
salts from the soil
examples ( plants
and algae).
6. Living things that eat other living things
( animals ).
* PRIMARY CONSUMERS
Are animals that eat plants ( herbivores )
such as rabbits and grasshoppers.
* SECONDARY CONSUMERS
Are animals that eat herbivorous
animals such as foxes and owls are
( carnivores and omnivores ).
* TERTIARY CONSUMERS
Are animals that eat secondary
consumers such as ( hawks and snakes ).
7.
8. Tertiary consumers
PREDATORS are carnivorous animals that hunt
other animals for food ( lions, tigers… ).
SCAVENGERS are carnivorous animals that eat
the dead bodies of other animals ( vultures ).
PARASITES feed of living things without killing
them mosquitoes.
9.
10. Living things that
decompose the remains of
other plants and animals so
the minerals of these living
things return to the soil.
( fungi and bacteria ).
11.
12. FOOD WEB
Food webs are a combination of various food
chains.
