Free Printable Gr.5 Ch.4 L.1,2,3,4 T. REHAM SAFWAT

1.

……………………… are strong winds can rip up trees and flatten plants.

a)

Hail storm

b)

Hurricanes

c)

Blizzard

2.

……………. are new plants and animals that people may bring into an ecosystem.

a)

Nonnative species

b)

Native species

c)

Regulation

3.

During photosynthesis, plants give off ……………………

a)

nitrogen

b)

carbon dioxide

c)

oxygen

4.

The struggle of organisms for the same limited resources called ……………………

a)

environment

b)

competition

c)

mutation

5.

…………………… is an organism that cannot make its own food.

a)

Consumer

b)

Producer

c)

Decomposer

6.

Locusts are insects that travel in large groups called …………………..

a)

caravans

b)

shrewdness

c)

swarms

7.

…………………… an organism that makes its own food for energy

a)

Decomposer

b)

Producer

c)

Consumer

8.

……………………… are available supplies of food, water, sunlight, and space in an environment that living things need.

a)

Resources

b)

Pollution

c)

Conservation

9.

What is the source of energy for most plants?

a)

Clouds

b)

Sunlight

c)

Water

10.

The shortest food chains consist of ………………………

a)

two producers

b)

two consumers.

c)

a producer and a decomposer

11.

…………………. is any substance that damages the environment.

a)

Pollution

b)

Regulation

12.

…………………………… all of the conditions surrounding an organism.

a)

Competition

b)

Environment

c)

Symbiosis

13.

………………………………… is the outside layer of cells on the top and bottom of a leaf.

a)

Palisade tissue

b)

Spongy tissue

c)

Epidermis tissue

14.

……………………………………… the process plants use to make sugar for food. Slowly

a)

Photosynthesis

b)

Pollination

c)

Chemosynthesis

15.

Cellular respiration happens mostly in the………………which present in every cell and are the cells power producers

a)

mitochondria

b)

chloroplast

c)

cell wall

16.

……...........…………… is an organism that is eaten by another organism.

a)

Prey

b)

Predator

c)

Decomposer

17.

………….. is an organism that gets energy by breaking down wastes and dead organisms into small pieces and back nutrients again into the soil.

a)

Producer

b)

Consumer

c)

Decomposer

18.

The relationship between an owl and a mouse is an example of

a)

producer and consumer

b)

competition

c)

predator and prey

19.

Very thin, long cells that form hollow tubes make up ………………. which carry food and water through the plant parts.

a)

veins

b)

arteries

c)

capillaries

20.

Plants are ………………………..

a)

producers

b)

consumers

c)

decomposers

21.

A plant releases oxygen into the ground through its roots.

a)

True

b)

False

22.

A disease that wiped out the rabbit population in an environment would affect the coyote population in the same environment.

a)

True

b)

False

23.

People may bring new plants and animals into ecosystem. New species often harm some populations in ecosystems.

a)

True

b)

False

24.

Cars and factories cause pollution.

a)

True

b)

False

25.

Cellular respiration occurs mostly in a plant’s nucleus.

a)

True

b)

False

26.

If beavers built a dam on a stream, the kinds of plants and animals that lived around the stream would not be affected.

a)

True

b)

False

27.

Plants can make more sugar than they need.

a)

True

b)

False

28.

The wood frog can survive the winter because its body can be frozen without killing the frog.

a)

True

b)

False

29.

Nonnative species can harm some populations in an ecosystem.

a)

True

b)

False

30.

Predator is an organism that is eaten by another organism

a)

True

b)

False

31.

During cellular respiration, organisms give off

a)

oxygen

b)

water vapor.

c)

.carbon dioxide

d)

nitrogen

32.

Which describes both a food chain and a food web?

a)

both contain only consumers

b)

both contain multiple ways that energy flows

c)

both begin with a producer

33.

Which event would cause an ecosystem to change quickly?

a)

a climate change

b)

a rock becoming soil

c)

a lake drying up

d)

an earthquake

34.

Nonnative animal populations can grow rapidly in a new ecosystem because

a)

predators in the ecosystem are not used to hunting them.

b)

they are producers.

c)

nonnative species are always at the top of food chains.

d)

they have no competition for resources in the ecosystem.

35.

When organisms share limited resources, there is

a)

An extra resources

b)

mutation

c)

extinction

d)

competition

36.

Which of the following is an environmental change caused by humans?

a)

farm

b)

beaver dam

c)

heavy rain

d)

lichen on rocks

37.

Which can be described as the reverse of photosynthesis?

a)

mitochondria

b)

cellular respiration.

c)

metamorphosis.

d)

chlorophyll.

38.

a nonnative plant in an ecosystem spreads quickly. This will most directly affect the native plants by

a)

leaving them less space

b)

leaving them more sun.

c)

helping them grow

d)

giving them more food

39.

In one ecosystem, snakes eat birds, plants make fruit, and birds eat fruit. Which is the correct food chain?

a)

snake , plant , bird

b)

snake , bird , plant

c)

plant , bird , snake

d)

bird , plant , snake

40.

What is the role of this organism in a food chain?

a)

It eats other organisms

b)

It cannot make its own food.

c)

It uses the sun's energy to make food

d)

It breaks down wastes and dead organisms.

Gr.5 Ch.4 L.1,2,3,4 T. REHAM SAFWAT

Total questions: 40

Worksheet time: 29mins

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