How do animals respond to environment changes?

1. CHANGES IN
ECOSYSTEM
Chapter 4 lesson 2

2. Environments change often:
•Many of the changes are natural changes.
•Some changes are very slow, takes place over a
long period of time. “drought “
•Other changes happen fast, like flood and fires.
•When an environment change, it affects the
plants and animals that live there.

3. •How do organisms respond to changes?
•Environmental changes can affect living things. For
example, each year some grasslands inAfrica go
through a dry season.When this happens, plants and
animals get less water.
•Watering holes can dry up.Tall grasses can dry out.
•When an environment changes, some living things must
move.They must find a new habitat where they can live.
Elephants, for example, migrate in search of water and
grasses.

4. When an environment changes some organisms:
Move to find an
new habitat.
Example:
Elephants
migrate in search
for water and
grass.
• Adjust to survive.
• Example:
• Some predators hunt
other things.
• Some frogs and fish
burrow themselves
when their
environment
becomes dry.
Cannot adjust or
migrate so they
die.