1. Interactions ofInteractions of
Living ThingsLiving Things
ScienceScience
Chapter 2Chapter 2

2. An ecosystem has…
1. only trees and people.
2. only nonliving things.
3. only living things.
4. both living and nonliving
things.

3. producer
• A(n)
___________
_________ is
an organism
that makes its
own food.

4. The place where a plant or animal
lives is called its…
1. species
2. habitat
3. adaptation
4. prey

5. In a rainforest, what are some
limited resources that plants need?
Why?
1. Nutrients in the soil
would be limited
because so many plants
grow there.
2. Sunlight is limited
because the taller plants
shade the plants below.

6. pollinator
• An animal that
helps plants
make seeds by
moving pollen
is called a(n)
____________
________.

7. What do animals use camouflage for?
1. to look like
another organism.
2. to survive habitat
change
3. to hide from
predators and
prey
4. to sleep so they
save energy

8. How do the bee and the plant depend
on each other?
1. The plant needs the bee
for food.
2. The plant needs the bee
to reproduce.
3. The bee does not need
the plant.
4. The bee needs the plant
to reproduce.

9. Which organism makes its own food?
1. mouse
2. all of them
3. fox
4. grass

10. adaptation
• A(n)
______________
______ can be a
physical feature
or a behavior
that helps a plant
or animal
survive.

11. What does NOT happen to the food
an animal eats?
1. The food is used for
energy.
2. The food passes through
the animal.
3. The food disappears.
4. The food breaks down.

12. consumer
• An organism that eats plants or
eats other animals that eat plants
is a(n) ____________________.

13. A rabbit running in a zigzag ahead of a
fox is a rabbit’s …
1. game.
2. environment.
3. behavior.
4. food.

14. extinction
• __________
__________
is when all
members of
a species die
out.

15. Camouflage is a kind of …
1. disguise.
2. food.
3. place to live.
4. behavior.

16. Living things get energy from…
1. air
2. food
3. soil
4. water

17. Which organism is a carnivore?
1. tree
2. lion
3. mold
4. ant

18. prey
• ____________________ is any
animal that is hunted for food.

19. Plants and animals compete for food,
water, and …
1. space
2. warmth
3. shade
4. sunlight

20. Use the Chart: Inquiry
In which year was the deer
population the largest?
The smallest?
year 15
year 30

21. All organisms do one of these two
jobs:
1. save food and
use it.
2. make food or
eat it.
3. shop for food or
cook it.
4. hunt for food
and grow it.

22. Organisms compete for resources
because…
1. resources are
plentiful.
2. resources become
extinct.
3. resources are scarce.
4. resources are limited.

23. species
• A group of
organisms that
produces
organisms of the
same kind is a(n)
______________.

24. camouflage
• _______________
is the physical
appearance of an
animal that helps
it blend in with its
surroundings.

25. mimicry
• ________________
is an adaptation
that allows an
animal to protect
itself by looking like
another organism.