Quiz about Matter Cycles and Energy Flow in Ecosystems

Question 1

Consumers have several energy levels. All the statements are false except

Accepted Answer

As consumers advance to other levels, they get fewer in number.

Answer

As consumers advance to higher levels, they become more numerous.

Answer

As consumers advance, they restrict their diet to one organism.

Answer

As consumers advance they make more energy.

Question 2

How does matter move among the living and nonliving parts of an ecosystem?

Accepted Answer

matter is recycled within and between ecosystems

Answer

one-way flow of energy

Answer

two-way flow of energy only

Answer

three-way flow of energy only

Question 3

What is our role in the carbon cycle?

Accepted Answer

All of the above.

Answer

We are made of carbon.

Answer

We release it into the atmosphere when we breathe.

Answer

We release it into the atmosphere when using fossil fuels.

Question 4

Where is the majority of nitrogen located?

Accepted Answer

Most of the nitrogen on Earth is in the atmosphere.

Answer

Most of the nitrogen on Earth is in the soil.

Answer

Most of the nitrogen on Earth is in the water.

Answer

None of the above.

Question 5

When animals break down glucose to create energy, they release water and carbon dioxide (CO2.) How can carbon dioxide (CO2) be reused within the food web?

Accepted Answer

It can be used by plants during photosynthesis to create glucose.

Answer

It can be used by animals as a source of oxygen.

Answer

It can be used by both plants and animals to produce energy.

Question 6

By which process is water taken from the ocean to form clouds?

Accepted Answer

evaporation

Answer

condensation

Answer

transpiration

Question 7

Which group in a food web is most likely to change atmospheric nitrogen into forms that are usable?

Accepted Answer

decomposers

Answer

consumers

Answer

producers

Answer

scavengers

Question 8

What is the energy source for the carbon dioxide cycle?

Accepted Answer

the Sun

Answer

plants

Answer

respiration

Question 9

Which best explains the role of bacteria in an ecosystem?

Accepted Answer

They break down organic matter into necessary nutrient components.

Answer

They release energy from the decomposition of atmospheric gases.

Answer

They convert carbon dioxide and water into simple carbohydrates.

Answer

They absorb energy from the synthesis of inorganic compounds.

Question 10

Which molecule is necessary in order for respiration to occur in plants and animals?

Accepted Answer

oxygen

Answer

nitrogen

Answer

sulfur

Answer

water

Question 11

Which best describes the role plants serve in the oxygen cycle?

Accepted Answer

They release oxygen as a waste product of photosynthesis.

Answer

They absorb oxygen during photosynthesis.

Answer

They absorb oxygen during decomposition reactions.

Answer

They release oxygen as a waste product in cellular respiration.

Question 12

Which of the following is an example of a biotic factor in an ecosystem?

Accepted Answer

tree

Answer

sunlight

Answer

stream

Answer

rock

Question 13

Most producers get energy from the Sun using the process of

Accepted Answer

photosynthesis

Answer

cellular respiration

Answer

chemosynthesis

Answer

consumption

Question 14

Decomposers are important to ecosystems because they

Accepted Answer

return vital nutrients to the ecosystem

Answer

capture energy from the Sun

Answer

are producers

Answer

can be omnivores

Question 15

A consumer gets energy by

Accepted Answer

feeding on other organisms.

Answer

absorbing sunlight.

Answer

breaking down dead organisms.

Answer

soaking it up from the ground.

Question 16

The cycling of matter is important because

Accepted Answer

Only a limited amount of matter is available so it has to be recycled

Answer

Matter can be created and destroyed

Answer

Matter can only be found in a solution

Answer

Bacteria use matter to convert organisms into solar energy

Question 17

Plants, animals, and decomposers (which consume dead things) are in a forest ecosystem. Scientists are studying photosynthesis in the forest. Which group or groups of organisms should they study?

Accepted Answer

plants

Answer

all organisms in the forest

Answer

animals and decomposers

Answer

plants and decomposers

Question 18

Where does cellular respiration take place in the cell?

Accepted Answer

Mitochondria

Answer

Cell Membrane

Answer

Nucleus

Answer

Vacuole

Question 19

What kind of things perform cellular respiration?

Accepted Answer

All living cells

Answer

plants only

Answer

animals only

Answer

yeast only

Question 20

Where in the cell does photosynthesis occur?

Accepted Answer

chloroplast

Answer

mitochondria

Answer

stomata

Answer

xylem

Question 21

All the living and nonliving things interacting in a particular area create an ________________.

Accepted Answer

ecosystem

Answer

biodome

Answer

playground

Answer

park

Question 22

Which of the following removes carbon from the atmosphere?

Accepted Answer

Photosynthesis

Answer

Combustion

Answer

Respiration

Answer

Death

Question 23

Molecules are

Accepted Answer

2 or more atoms bound together

Answer

2 atoms bound together

Answer

2 elements bound together

Answer

2 or more atoms mixed together

Question 24

Respiration is the process by which animals take in _____ and release _____.

Accepted Answer

oxygen, carbon dioxide

Answer

photosynthesis, air

Answer

carbon, oxygen

Answer

oxygen

Question 25

Organisms that make their own food

Accepted Answer

Producer

Answer

Consumer

Answer

Decomposer

Question 26

Organisms that obtain energy by feeding on other organisms

Accepted Answer

Consumer

Answer

Producer

Answer

Decomposer

Question 27

Organisms that break down wastes and dead organisms and return the raw materials to the environment

Accepted Answer

Decomposer

Answer

Producer

Answer

Consumer

Question 28

Consumers that eat only plants

Accepted Answer

Herbivores

Answer

Carnivores

Answer

Omnivores

Answer

Scavengers

Question 29

Consumers that eat only animals

Accepted Answer

Carnivores

Answer

Omnivores

Answer

Herbivores

Answer

Scavengers

Question 30

Consumers that eat both plants and animals

Accepted Answer

Omnivores

Answer

Carnivores

Answer

Herbivores

Answer

Scavengers

Question 31

Consumers that feed on the bodies of dead organisms

Accepted Answer

Scavengers

Answer

Carnivores

Answer

Omnivores

Answer

Herbivores

Question 32

A food _______ is a series of events in which one organism eats another and obtains energy.

Accepted Answer

chain

Answer

web

Answer

pyramid

Answer

plate

Question 33

A food _______ consists of many overlapping food ________.

Accepted Answer

web, chains

Answer

chain, webs

Answer

pyramid, webs

Answer

web, pyramids

Question 34

As you work your way up the energy pyramid, what happens to the energy?

Accepted Answer

It decreases

Answer

It increases

Answer

It stays the same

Answer

Nothing

Question 35

In the food web above, what eats the rabbit?

Accepted Answer

Fox

Answer

Hawk

Answer

Vole

Answer

Grass

Question 36

In the energy pyramid, what is the bottom level composed of?

Accepted Answer

Producers

Answer

First-Level Consumers

Answer

Second-Level Consumers

Answer

Third-Level Consumers

Question 37

In the energy pyramid, what comes after the producers?

Accepted Answer

First-Level Consumers

Answer

Producers

Answer

Second-Level Consumers

Answer

Third-Level Consumers

Question 38

How is Nitrogen removed from the air and put into compound that living things can use?

Accepted Answer

nitrogen fixing bacteria

Answer

plants

Answer

photosynthesis

Answer

chemosynthesis

Question 39

What gas does burning things release into the atmosphere?

Accepted Answer

carbon dioxide

Answer

oxygen

Answer

nitrogen

Answer

diethylchlorofloromethane

Question 40

What happens to carbon dioxide levels in the atmosphere when we burn fossil fuels?

Accepted Answer

carbon dioxide levels in the atmosphere rise

Answer

carbon dioxide levels in the atmosphere fall

Answer

carbon dioxide levels in the atmosphere stay the same

Question 41

Which of the following take carbon dioxide out of the atmosphere?

Accepted Answer

photosynthesis

Answer

plant and animal respiration

Answer

volcanoes

Answer

combustion of fossil fuels

Question 42

What is the most abundant gas in the atmosphere?

Accepted Answer

nitrogen

Answer

hydrogen

Answer

oxygen

Answer

helium

Question 43

What happens during the process of nitrogen-fixation?

Accepted Answer

Free nitrogen turns into nitrogen compounds

Answer

Nitrogen compounds turn into free nitrogen

Question 44

Identify the cycle pictured.

Accepted Answer

The Carbon cycle

Answer

The Water cycle

Answer

The Nitrogen cycle

Answer

The Phosphorus cycle

Question 45

What is this a picture of?

Accepted Answer

Nitrogen cycle

Answer

carbon cycle

Answer

water cycle

Answer

plant cycle

Question 46

How does matter move among the living and nonliving parts of an ecosystem?

Accepted Answer

matter is recycled within and between ecosystems

Answer

one-way flow of energy

Answer

two-way flow of energy only

Answer

three-way flow of energy only

Question 47

What is a major contributor to global warming?

Accepted Answer

excess carbon dioxide

Answer

excess oxygen

Answer

excess carbon monoxide

Answer

excess hydrogen

Question 48

Which of the following puts an enormous amount of carbon in the atmosphere?

Accepted Answer

burning fossil fuels

Answer

photosynthesis

Answer

cellular respiration

Answer

decomposition

Question 49

Farmer Joe is worried he will not get enough of his corn crop there year. Which process below will be help his crop to grow?

Accepted Answer

Nitrogen Fixation through soil bacteria

Answer

Denitrification through soil bacteria

Answer

Cellular Respiration in the plants

Answer

Chemosynthesis in the soil

Question 50

Horses are a primary consumer that eat plants. What defines other organisms that share the same trophic level as horses?

Accepted Answer

Grassland animals that also eat plants and plant products

Answer

Cougar, coyotes, and other animals that eat horses

Answer

Other organisms in the community that interact with horses

Answer

Grassland animals that are the same size as horses

Question 51

In the image provided, what is shown by the arrows that lead to and from the wolf?

Accepted Answer

The wolf is part of one food web but several food chains

Answer

The wolf is part of several food chains, but not a food web

Answer

The wolf is part of several food chains and several food webs

Answer

The wolf is part of one food web but no food chains

Question 52

Which of the following methods is how primary producers obtain energy?

Accepted Answer

Use the sun to produce energy rich compounds

Accepted Answer

Break down chemicals to produce energy rich compounds

Answer

Produce CO2 through cellular respiration

Answer

Consuming other organisms

Question 53

Using the diagram, which of the following describes how energy moves through the food chain?

Accepted Answer

producers --> consumers; in one direction

Answer

between producers and consumers, in either direction

Answer

consumers --> producers; in one direction

Answer

producers --> consumers; in a cycle

Question 54

True or False: In an ecosystem, energy is recycled and nutrients/matter flow in one direction

Accepted Answer

False: energy flows in one direction and nutrients/matter recycle

Answer

True

Question 55

Which of the following is an example of a food producer?

Accepted Answer

Oak Tree

Answer

Human

Answer

Grizzly Bear

Answer

Orca

Question 56

Which are decomposers ?

Accepted Answer

worms

Answer

humans

Answer

trees

Answer

red wolves

Question 57

Which choice has a group of only consumers?

Accepted Answer

owl, snake, bear

Answer

grass, cows, birds

Answer

tigers, turtles, seaweed

Answer

castus, sun, mushroom

Question 58

Which choice has a group of only producers?

Accepted Answer

sunflower, grass, pine tree

Answer

red wolf, coyote, grey wolf

Answer

mushrooms and worms

Answer

seaweed, algae, mushrooms

Question 59

How is the sun a part of a food chain?

Accepted Answer

it is the energy source

Answer

it is eaten

Answer

it feeds animals

Answer

it tastes good

Question 60

What is a food chain?

Accepted Answer

A path showing how energy moves from one living thing to another.

Answer

A necklace.

Answer

Jewelry made of food.

Answer

A life cycle.

Question 61

What do the arrows represent in a food chain?

Accepted Answer

"Gives energy to"

Answer

Stop

Answer

Start

Question 62

The shrew provides energy for the _______?

Accepted Answer

snake

Answer

cricket

Answer

grasshopper

Answer

frog

Question 63

What is this called?

Accepted Answer

Food Chain

Answer

Food Web

Answer

Abiotic Factors

Question 64

What is this called?

Accepted Answer

Food Web

Answer

Food Chain

Answer

Abiotic Factors

Matter Cycles and Energy Flow in Ecosystems

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