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LockeD! - 5.12A - Interaction with Ecosystem #1

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

Some beetles break down the remains of dead animals. Some mushrooms break down the remains of dead trees. How do these actions most benefit plants?

a)

By returning nutrients to the soil

b)

By releasing oxygen into the air

c)

By making space for new animals

d)

By decreasing the population of herbivores

2.

In the fall and winter many trees lose their leaves in response to cooler temperatures and –

a)

a decrease in average wind speed

b)

fewer hours of daylight

c)

an increase in humidity

d)

more direct sunlight

3.

The African baobab tree has a huge trunk that can store as much as 100 kiloliters of water. This adaptation would be an advantage in a climate that is very—

a)

cold

b)

dry

c)

windy

d)

sunny

4.

In the diagram, the label Z represents —

a)

sugar

b)

carbon dioxide

c)

nitrogen

d)

water vapor

5.

Brightly colored flowers are most often pollinated by—

a)

wind

b)

mammals

c)

rainfall

d)

insects

6.

The picture shows two views of a certain fish. How does the appearance of this fish most likely help it survive?

a)

Prey have little chance of seeing this fish as it approaches head-on.

b)

The head-on view of this fish attracts predators.

c)

The narrow body allows this fish to live in deeper water.

d)

Predators have a hard time seeing the side view of this fish.

7.

A community of living and non-living things that interact is called –

a)

a life cycle

b)

a water cycle

c)

an ecosystem

d)

an envirosystem

8.

From what part of an ecosystem do plants get carbon dioxide?

a)

Air

b)

Soil

c)

Water

d)

Sunlight

9.

Why do scientists classify an ecosystem as a type of system?

a)

It contains living and non-living things

b)

It is composed of soil, air, and living things

c)

It is composed of a group of parts working together

d)

It contains many gases such as oxygen, nitrogen and carbon dioxide

10.

All living and nonliving things that surround an animal are part of its—

a)

food chain

b)

life cycle

c)

ecosystem

d)

atmosphere

11.

The picture shows a plant that is bending as it grows. What MOST LIKELY caused the plant to bend this way?

a)

Fertilizer

b)

Gravity

c)

Heat

d)

Light

12.

The wind helps many plants reproduce by—

a)

cooling the plants

b)

giving the plants moisture

c)

spreading the plants’ pollen

d)

strengthening the plants’ root systems

13.

Which of the following is one nonliving part in the habitat of a bluebird?

a)

Insects that they eat

b)

Air that they breathe

c)

Hawks that eat them

d)

Plants they use for nests

14.

The diagram shows a lodge where beavers live. This diagram shows that beavers need trees for -

a)

air

b)

water

c)

sunlight

d)

shelter

15.

The picture shows a fox and an owl both trying to catch a rabbit. The fox and the owl are both -

a)

finding a mate

b)

competing for food

c)

seeking shelter

d)

migrating for the winter

16.

Plants use sunlight and take in carbon dioxide from the air and water from the environment to make food. In this process, they release oxygen back into the environment. How is this important to the survival of other living things?

a)

Plants use this oxygen to make water

b)

People need this oxygen to make electricity

c)

Animals use oxygen for food

d)

Living things need oxygen for respiration

17.

Which animals are most likely to carry the seeds found in berries from the parent plant to another area?

a)

Bees

b)

Birds

c)

Flies

d)

Caterpillars

18.

The yucca moth of the Arizona desert lays its eggs inside the flower of the yucca plant. When the eggs hatch, the moth larvae eat some of the plant seeds. When the moth flies away from the plant, it takes pollen from the yucca flower with it. How does the yucca moth help the yucca plant?

a)

Lays eggs

b)

Eats seeds

c)

Hatches larvae

d)

Spreads pollen

19.

Many animals depend on plants for—

a)

carbon dioxide

b)

pollination

c)

seed dispersal

d)

nourishment

20.

Which organism produces oxygen for other organisms?

a)

A fish

b)

A water lily

c)

A blue bird

d)

A snail