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Q2 exam preparation

Total questions: 26

Worksheet time: 13mins

Name
Class
Date
1.
An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?
a)
They break down dead organisms to return nutrients to the soil.
b)
They produce their own food for survival.
c)
They play a role in preventing weathering and erosion.
d)
They provide most of the energy to consumers.
2.
Which best describes how decomposers help support life in an ecosystem?
a)
Decomposers add nutrients to the soil.
b)
Decomposers provide a habitat in the ecosystem.
c)
Decomposers add producers to the ecosystem.
d)
Decomposers provide energy for consumers.
3.
Which is an example of a decomposer?
a)
a hawk
b)
a mouse
c)
a flower
d)
a mushroom
4.
Which describes a decomposer?
a)
an organism that eats only plants
b)
an organism that makes its own food
c)
an organism that breaks down dead matter
d)
an organism that receives energy from the sun
5.
Which is considered a decomposer?
a)
fungi
b)
mold
c)
bacteria
d)
all of the above
6.
What is the role of a decomposer in a food web?
a)
It eats animals
b)
It produces its own food and provides other organisms with food
c)
It eats plants
d)
It breaks down dead plants and animals into minerals
7.

Are fungi and bacteria same?

a)

Yes

b)

No

8.

What plant structure transfers sugars throughout the plant?

a)

Phloem

b)

Transpiration

c)

Xylem

d)

Stomata

9.

What is the name of the process that helps water evaporate from a plant's leaves?

a)

Evaporation

b)

Perspiration

c)

Transpiration

d)

Phloem

10.

What pore-like feature on a plant's leaves prevent water from escaping?

a)

Phloem

b)

Stomata

c)

Roots

d)

Xylem

11.

What three things does a plant need to survive?

a)

Carbon dioxide, water, and light

b)

Light, water, space, and soil

c)

Food, water, and air

d)

Light, carbon dioxide, water, and room to grow

12.

Name the tissue that is found in the center of the stem.

a)

Xylem

b)

Stomata

c)

Roots

13.

All living things on earth are part of the....

a)

Biosphere

b)

Geosphere

c)

Hydrosphere

d)

Cryosphere

14.

The Geosphere is...

a)

All liquid water on Earth

b)

A 100km thick layer of gases

c)

frozen water on earth

d)

Earths entire solid body

15.

"Bio" in biosphere means ____.

a)

air, vapor

b)

rock, earth

c)

water

d)

life

16.

"Atmo" in atmosphere means ____.

a)

air, vapor

b)

rock, earth

c)

water

d)

life

17.

"Hydro" in hydrosphere means ____.

a)

air, vapor

b)

rock, earth

c)

water

d)

life

18.

How do the geosphere and the hydrosphere interact?

a)

The geosphere stores parts of the hydrosphere.

b)

The geosphere erodes (shapes) the hydrosphere.

c)

The hydrosphere stores parts of the geosphere.

19.

Biotic can be defined as

a)

the living parts of an environment

b)

non-living parts of an environment

c)

rocks and water

d)

snakes and water

20.

Abiotic can be defined as?

a)

An organism that is alive

b)

Non-living parts of the environment

c)

Living Parts of the environment

d)

A new kind of Pokemon that lives with Pikachu

21.

Temperature is a _________factor

a)

Biotic

b)

Abiotic

c)

living

d)

cool

22.

A squirrel's habitat in a dead log is considered a _____factor

a)

Biotic

b)

Abiotic

c)

cool

d)

secret

23.

Select ALL the biotic factors

a)

Rotten log

b)

water

c)

dragon fly

d)

bacteria

e)

lily pad

24.

Soil is an example of a

a)

Biotic factor

b)

Abiotic factor

c)

competition

d)

herbivorous

25.

Which of the following is NOT a biotic factor?

a)

Coyote

b)

air

c)

elephant

26.

All living things or organisms in an ecosystem are

a)

None

b)

biotic factors

c)

abiotic factors

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