6. 2) Provide shelter for animals.
Example: Insects live in grasses
Squirrels live in trees.
7. Animals helps plants
1) Animals eat one kind of plant,
so, that plant does not spread.
(Other plants have space to grow)
8. 2) Animal droppings make the soil
richer.
3) Earthworms help loosen soil.
(Rich, loose soil help plants grow)
9. Animals and plants harm
one another.
1) Hungry deer can eat enough
leaves to kill a tree.
10. 2) Swarm of locusts can leave a
field without any plants.
11. 3) Gypsy moth caterpillars can eat
all the leaves on a tree.
12. 1) Wolves eat rabbits.
If the wolf population becomes too
large what would happen to the
rabbits?
They can eat all the rabbits.
Animals affect one another
13. What would happen to the wolves
if there were no more rabbits?
The wolves would go hungry and
might even die.
14. What would happen to the grass in
that area without the rabbits to
eat them?
The grass would spread.
15. A new kind of plant or animal can
change an ecosystem.
Example: People brought skunk
vine to the United States from Asia
It was planted as a crop, but, now it
grows wild.
16. Sunlight, air, water, soil and
climate
Non-Living parts of the
ecosystem
The non- living parts are
called ABIOTIC FACTORS
17. Abiotic factors affect the
ecosystem.
Example:
1) Water
Little rain
Plants die
Some animals die, some find other
homes
18. 2) Soil
Rich soil More plants grow
Poor soil Less plants grow
3) Sunlight
