An ecosystem is defined as a community of living and non-living things that interact in a specific area. Ecosystems can be terrestrial, aquatic, or artificial. They exist on a spectrum from the level of an individual organism, to populations of the same species, communities of different populations, entire ecosystems, and ultimately the biosphere of the entire planet. Some key ecosystem types described in the document include tundras, deserts, forests like coniferous, deciduous and Mediterranean, grasslands like savannahs and prairies, and tropical rainforests.

1. ECOSYSTEMS and
biosphere
ECOSYSTEMS is a community of living
things, non-living things and elements
(physical environment) that live and
interact in a special area.
Ecosystems can be terrestial, aquatic or
artificial

2. INDIVIDUAL

3. POPULATION

4. COMMUNITY

5. ECOSYSTEMS

6. BIOSPHERE

7. INDIVIDUAL: Individual living thing.
POPULATION: A group of individual that belongs to the same species
and live in the same area.
COMMUNITY: Groups of differents populations that live in same area.
ECOSYSTEMS: All the living things and non-living things that functions
together in one place.
BIOSPHERE: Is all our planet earth

8. • TUNDRA: Is the coldest and driest ecosystem on Earth. It is near the
North Pole. There are no trees. Grasses and mosses grow well there.

9. • DESERTS: Is one of the driest and hottest places on Earth.
Temperatures are very high during the day but very low at the night.
Most deserts are rocky áreas with small shrubs. Cacti and camels
well in dry conditions.

10. • FORESTS: There are differents of forests:
Coniferous forest: Grow well in cold
areas. They are home to evergreen tres
such as pines, and to animals such as deer.
Temperate deciduous forests: are home
to squirrels and rodents and deciduous
trees such as oaks and maples.These tres
lose their leaves every autumn.
Mediterranean forests: grow mostly in
áreas near the Mediterranean Sea. They
are home to Hawks, eagles and Lynx. The
flora in these forests indudes cork oaks,
rosemaru and thyme.

11. • GRASSLANDS: Are flat áreas of
grasses an large shrubs.
There are two types of grasslands:
-In tropical áreas, a savannah is
home to elephants, giraffes, zebras
and lions. Some of the most
common savannanh tres are the
acacia tree and the baobab tree.
-Temperate grasslands, such as
steppes and prairies, grow in colder
áreas. Prairies are home to bison,
wolves and coyotes.

12. • TROPICAL RAINFOREST: Are
the richest ecosystems on
Earth. We can find them in
áreas with tropical wet
climates near the Equator .
Most tropicalrainforest are
warm all year long. Insects are
the most abundant species in
the tropical rainforest.

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