ecosystem changes

1. HOW CAN CHANGES
IN AN ENVIRONMENT
AFFECT LIVING
ORGANISMS?

2. - There are many changes that can happen to
an environment.
- They can change & become different.

3. Environment can be changed
by
Natural
disasters
Diseases

4. - They are the disasters that happens by nature.
Natural
Disasters
Examples
DroughtFlood

5. - When the land become covered by water.
- It is caused by:
- Heavy rains Storms
- It changes the environment by:
- Washing away soil & plants, so animals lose
their habitats.
Flood

6. - It happens when there is no rain for a long time.
- It can cause: Wildfires “If a lightening strikes a dried
area”
- It changes the environment by:
- “Rivers, Lakes & soil can dry”
Drough
t

7. When an environment changes,
some organisms:
1- Move to find a new habitat.
Elephants migrate in search for water & g

8. 2- Adjust to survive.
Some predators hunt other
things.
Some frogs & fish burrow
“make a small hole & stay in
it” themselves when their
environment becomes dry.

9. 3- Cannot adjust or migrate so
they die.

10. Diseases
Examples:
Molds Bacteria Mildew

11. Population
They are a group of living
organisms of the same kind
living together in the same
place.

12. Community
All the population in an
ecosystem make a community.

13. - When there are only a few living members of
an organism left “animal or plant”, it becomes
endangered.
- Examples
- Bengal tiger Saharan cypress
tree
Endangered