Quiz about Science 7 Unit 1: Ecosystems Review

Question 1

All living and non living things that interact in an area.

Accepted Answer

Ecosystem

Answer

School

Answer

Home

Answer

environment

Question 2

During photosynthesis plants make sugar and....

Accepted Answer

Oxygen

Answer

Carbon Dioxide

Answer

Dirt

Answer

light

Question 3

Photosynthesis and cellular respiration are basically the opposite.

Accepted Answer

true

Answer

false

Question 4

All of the nonliving things in an ecosystem. Although not alive, these things still affect everything living in the ecosystem.

Accepted Answer

abiotic factors

Answer

factories

Answer

factor trees

Answer

biotic factors

Question 5

The non living parts of an ecosystem, such as rain, sunlight, and wind.

Accepted Answer

abiotic factors

Answer

biotic factors

Answer

oxygen

Answer

soil

Question 6

Plants use photosynthesis to make

Accepted Answer

sugar

Answer

water

Answer

sunlight

Answer

carbon dioxide

Question 7

Which of the following is the correct equation for PHOTOSYNTHESIS?

Accepted Answer

CO₂+ light + H₂O --> O₂+ Sugar

Answer

CO₂+ sugar + H₂O --> O₂+ light

Answer

_O2+ light + H₂O --> CO₂+ Sugar

Answer

CO₂+ O₂ + H₂O --> Light+ Sugar

Question 8

What is the gas we breathe out that plants use for photosynthesis?

Accepted Answer

carbon dioxide

Answer

sulfur

Answer

oxygen

Answer

hydrogen

Question 9

What gas is released into the air during respiration?

Accepted Answer

carbon dioxide

Answer

oxygen

Answer

water

Answer

glucose

Question 10

Water vapor leaves a plant and goes into the air

Accepted Answer

transpiration

Answer

respiration

Answer

precipitation

Answer

evaporation

Question 11

What is precipitation?

Accepted Answer

Any form of water that falls from the sky

Answer

Sweat from our bodies on hot days

Answer

Warm rain but not cold snow or sleet

Answer

Gas that we use in furnaces or ovens

Question 12

The process when plants release water vapor from their leaves is called _____________.

Accepted Answer

transpiration

Answer

precipitation

Answer

evaporation

Answer

condensation

Question 13

What two things are needed for respiration?

Accepted Answer

glucose & oxygen

Answer

water & carbon dioxide

Answer

oxygen & carbon dioxide

Answer

glucose & water

Question 14

Which is not a product of respiration?

Accepted Answer

Oxygen

Answer

Water

Answer

Energy

Answer

Carbon Dioxide

Question 15

The purpose of respiration is to

Accepted Answer

make energy

Answer

make water

Answer

make glucose

Answer

make  oxygen

Question 16

TRUE or FALSE?
All of the carbon in existence is continually recycled in the carbon cycle.

Accepted Answer

True

Answer

False

Question 17

Carbon can be found in...

Accepted Answer

All of the above

Answer

The atmosphere

Answer

Soil

Answer

Food

Question 18

Which gas do animals release, that plants depend on for survival?

Accepted Answer

Carbon dioxide

Answer

Oxygen

Answer

Sunlight

Answer

Water

Question 19

How do plants affect the air that animals and people breathe?

Accepted Answer

Plants take in carbon dioxide and release oxygen

Answer

Plants use oxygen from the air to make their own food

Answer

Plants release pollution into the air

Answer

Plants take in oxygen and release carbon dioxide

Question 20

The process in which nitrogen circulates and is recycled is called

Accepted Answer

The nitrogen cycle

Answer

The carbon cycle

Answer

The water cycle

Answer

The phosphorus cycle

Question 21

Organisms that need nitrogen to survive.

Accepted Answer

all living things

Answer

only plants

Answer

only animals

Answer

only bacteria

Question 22

How is nitrogen "fixed" into a usable form for plants?

Accepted Answer

Through action of bacteria and lightning

Answer

Through action of bacteria only

Answer

Through lightning only

Answer

Through photosynthesis

Question 23

How do animals get the nitrogen they need?

Accepted Answer

From the food they eat

Answer

From the air they breathe

Answer

From the water they drink

Answer

From the sun

Question 24

A correct path that nitrogen could take would be

Accepted Answer

air -> bacteria -> plants -> animals

Answer

air -> animals -> plants -> bacteria

Answer

animals -> air -> bacteria -> plants

Answer

bacteria -> air -> plants -> animals

Question 25

In the nitrogen cycle, what does label A in the diagram represent?

Accepted Answer

Nitrogen in the atmosphere

Answer

Gas

Answer

Clouds

Answer

Carbon dioxide in the atmosphere

Question 26

What is it called when plants give off water vapor as a waste product?

Accepted Answer

transpiration

Answer

condensation

Answer

evaporation

Answer

sublimation

Question 27

What are formed when water vapor condenses?

Accepted Answer

Clouds

Answer

Mountains

Answer

Transpiration

Answer

Valleys

Question 28

What is the energy source that drives the water cycle?

Accepted Answer

The sun

Answer

The moon T

Answer

The heat from our home in the winter all around the world

Answer

he heat generated solely from the core of the earth

Question 29

Which process converts carbon in the form of sugar into carbon dioxide gas?

Accepted Answer

Respiration

Answer

Bioremediation

Answer

Photosynthesis

Answer

Transpiration

Question 30

Which of the following removes carbon from the atmosphere?

Accepted Answer

Photosynthesis

Answer

Combustion

Answer

Respiration

Answer

Death

Question 31

Carbon enters the soil through dead plant or animal matter.

Accepted Answer

Decomposition

Answer

Respiration

Answer

Photosynthesis

Answer

Diffusion

Question 32

A niche ________________.

Accepted Answer

All of these are part of a niche.

Answer

is the role an organism holds in the food web

Answer

includes everything the organism does in its environment.

Answer

is specific to each individual organism.

Question 33

Which is an example of a niche?

Accepted Answer

Bees taking food from flowers and pollinating them to create more flowers

Answer

Blood flowing through the veins of a lion

Answer

A treetop nest

Answer

A desert

Question 34

Which is NOT part of the niche of a tree?

Accepted Answer

All of these are part of a tree's niche

Answer

To provide habitat for birds

Answer

To prevent erosion by holding the soil in place

Answer

To provide food for bugs

Question 35

A squirrels niche would be _________________.

Accepted Answer

storing nuts and seeds for winter and providing food for some predators.

Answer

hunting prey to provide meat for other squirrels.

Answer

searching for fish to eat in the ocean.

Answer

helping to decompose dead animals and plants.

Question 36

All the living and nonliving things in an area and their interactions is called:

Accepted Answer

Ecosystem

Answer

niche

Answer

producer

Answer

decomposer

Question 37

In a habitat, animals have a __________, which is how they interact, get food and shelter.

Accepted Answer

niche

Answer

ecosystem

Answer

community

Answer

population

Question 38

Why do plants conduct photosynthesis?

Accepted Answer

To make glucose

Answer

To make light

Answer

To make mitochondria

Answer

To release carbon dioxide

Question 39

Which choice correctly shows the gases that enter and exit plants during photosynthesis?

Accepted Answer

Enter: Carbon dioxide
Exit: Oxygen

Answer

Enter: Oxygen
Exit: Carbon dioxide

Answer

Enter: Water vapor
Exit: Glucose

Answer

Enter: Light
Exit: Water vapor

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