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Food Webs

Total questions: 62

Worksheet time: 8hrs 7mins

Name
Class
Date
1.

An organism that uses sunlight to make its own food for energy

a)

Carbon Dioxide

b)

Producer

c)

Flow

d)

Energy

2.

A gas produced by cells during respiration; used in photosynthesis to produce sugars

a)

Carbon Dioxide

b)

Producer

c)

Flow

d)

Energy

3.

To move or travel smoothly in a certain direction

a)

Carbon Dioxide

b)

Producer

c)

Flow

d)

Energy

4.

What is needed to do work or cause change

a)

Carbon Dioxide

b)

Producer

c)

Flow

d)

Energy

5.

An interconnected set of food chains

a)

Consumer

b)

Producer

c)

Food Web

d)

Sun

6.

The star at the center of the solar system that supplies heat and light to Earth; its enormous gravity keeps the solar system in orbit

a)

Consumer

b)

Producer

c)

moon

d)

Sun

7.

An organism that gets energy from eating plants or animals

a)

photosynthesizer

b)

Producer

c)

Consumer

d)

Decomposer

8.

An organism that breaks down the remains of dead plants or animals without need for internal digestion

a)

Consumer

b)

Producer

c)

photosynthesizer

d)

Decomposer

9.

A sequence of events that repeats itself

a)

Food web

b)

Cycle

c)

Food Chain

d)

Flow

10.

The path of food energy from one organism to another in an ecosystem

a)

Food web

b)

Cycle

c)

Food Chain

d)

Flow

11.

What do plants use to make their own food?

a)

Soil, air, and rocks

b)

Sunlight, water, and carbon dioxide

c)

Wind, water, and soil

d)

Sugar, water, and oxygen

12.

What is the name of the process that plants use to make food?

a)

Photosynthesis

b)

Condensation

c)

Evaporation

d)

Precipitation

13.

Which part of the plant absorbs sunlight for photosynthesis?

a)

Stems

b)

Roots

c)

Leaves

d)

Flowers

14.

During photosynthesis, what gas do plants take in from the air?

a)

Oxygen

b)

Carbon Dioxide

c)

Nitrogen

d)

Hydrogen

15.

What is the main purpose of photosynthesis?

a)

To produce oxygen for humans

b)

To create soil nutrients

c)

To make food (sugar) for the plant

d)

To absorb water from the soil

16.

What is a product of photosynthesis that is released into the air?

a)

Hydrogen

b)

Nitrogen

c)

Carbon Dioxide

d)

Oxygen

17.

What happens to the energy from sunlight during photosynthesis?

a)

It is stored in the plant as food (sugar)

b)

It is released back into the air

c)

It is used to break down the plant’s roots

d)

It makes the leaves turn brown

18.

Which of the following is an example of a producer?

a)

A mushroom

b)

A rabbit

c)

Grass

d)

A lion

19.

What is the main source of energy for all living things in a food web?

a)

Air

b)

Soil

c)

Water

d)

Sun

20.

What do consumers eat in a food web?

a)

Only other consumers

b)

Only decomposers

c)

Producers and/or other consumers

d)

Only rocks and soil

21.

Which of the following is a decomposer?

a)

A mushroom

b)

A tree

c)

A rabbit

d)

A summer

22.

What is the role of decomposers in the food web?

a)

They produce their own food using sunlight

b)

They break down dead plants and animals, returning nutrients to the soil

c)

They hunt and eat other animals

d)

They absorb energy directly from the Sun

23.

What happens to energy as it moves through a food web?

a)

It gets recycled back into the Sun

b)

It disappears completely

c)

It moves only in a straight line from one animal to another

d)

It flows from the Sun to producers, then to consumers, and finally to decomposers

24.

Which of these is an example of a primary consumer?

a)

A snake that eats mice

b)

A rabbit that eats grass

c)

A hawk that eats snakes

d)

A mushroom that decomposes a log

25.

In a food web, which of these organisms would be at the top of the energy pyramid?

a)

Grass

b)

A deer

c)

A mushroom

d)

A wolf

26.

What would most likely happen if all the decomposers in an ecosystem disappeared?

a)

Dead plants and animals would pile up, and nutrients wouldn’t return to the soil

b)

Plants would grow faster because they don’t need decomposers

c)

Consumers would start producing their own food

d)

Nothing would change

27.

Which of the following correctly shows the flow of energy in a food chain?

a)

Consumer → Producer → Decomposer → Sun

b)

Decomposer → Consumer → Producer → Sun

c)

Sun → Producer → Consumer → Decomposer

d)

Sun → Consumer → Producer → Decomposer

28.

In ______________, plants use sunlight and carbon dioxide to make glucose and oxygen

a)

Combustion

b)

Respiration

c)

Decomposition

d)

Photosynthesis

29.

Why are producers important in an ecosystem?

a)

They help decompose dead animals

b)

They provide food for consumers

c)

They eat other animals

d)

They hunt decomposers

30.

Which of these organisms is the producer?

a)

Owl

b)

Mouse

c)

Grasshopper

d)

Grass

31.

Luna and Arjun went on a field trip to a local park. They were asked to identify the two producers in the ecosystem they observed. What did they identify?

a)

wildflowers and grass

b)

a rabbit and a mouse

c)

a hawk and a snake

d)

they said there is only 1 producer - grass

32.
Decomposers get their food by __________.
a)
making it themselves
b)
eating live organisms
c)
using dead organisms
d)
eating themselves
33.
Decomposers are very important in an ecosystem because they break down dead organisms.  True or False?
a)

True

b)

False

34.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
35.
Which of the following best describes the small bird in the food web above?
a)

producer

b)

consumer

c)

decomposer

36.

Several linked food chains

a)

ecosystem

b)

consumer

c)

food web

d)

Tundra

37.

In the energy pyramid below, which organism has the least amount of energy available?

a)

Producers

b)

Herbivores

c)

Carnivores

d)

Top Predator

38.

In the energy pyramid below, which organism has the most amount of energy available?

a)

Producers

b)

Herbivores

c)

Carnivores

d)

Top Predator

39.
Food of almost any kind can be traced back to what?
a)
the sun
b)
animals
c)
plants
d)
soil
40.
This diagram is a model of which of these?
a)
food web
b)
food pyramid
c)
food chain
d)
life cycle
41.
Which of these is an example of a producer?
a)
snake
b)
worm
c)
human
d)
grass
42.
Which of these is a consumer?
a)
sun
b)
human
c)
trees
d)
plants
43.
When a millipede breaks down dead and decaying material, it is acting as what?
a)
a decomposer
b)
an apex predator
c)
a producer
d)
prey
44.

Sandra plants a vegetable garden in her backyard. She plants yellow squash and red peppers. Unfortunately, slugs begin eating the vegetables while squash bugs begin drinking the sap from the squash vines. The slugs and the squash bugs are both 

a)

plants

b)

consumers

c)

decomposers

d)

producers

45.

Look at the food web of a pond ecosystem.

Which food chain shows the correct flow of energy in the pond 

of the food web?

a)
b)
c)
d)
46.

Which of the following statements describes how consumers get food?

a)

Consumers are able to make 

their own food.

b)

Consumers must get food 

from other organisms.

c)

Consumers make food or get food 

from other organisms.

d)

Consumers use sunlight and 

carbon dioxide for food.

47.

Look at the desert food web.

What organism will possibly die out if the feather grass were removed from the desert?

a)

Jackrabbit

b)

Grasshopper

c)

Desert tortoise

d)

Desert fox

48.

Look at the table.

Based on the Properties of Aquatic Organisms table, which organism is a producer?

a)

Grass Shrimp

b)

Phytoplankton

c)

Water Snail

d)

Zooplankton

49.

The table lists some characteristics of producers and consumers.

Which example would best replace the “X” in the table?

a)

Plants

b)

Trees

c)

Shrubs

d)

Goats

50.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
51.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
52.
What are the organisms that break down dead stuff?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Organisms
53.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
54.

Click on the image to make it larger-- Choose all that apply: The hawk gets energy from...

a)

mouse

b)

rabbit

c)

wildflowers

d)

snake

55.

Click on the image to make it larger-- Choose the living things that are producers...

a)

wildflowers

b)

rabbit

c)

snake

d)

grass

56.

Click on the image to make it larger--The rabbit gets energy from the ....

a)

hawk

b)

mouse

c)

wildflowers

d)

grass

57.

Click on the imgae to make it larger-- Choose the herbivores in the food web....

a)

hawk

b)

mouse

c)

rabbit

d)

snake

58.

A ____________________ shows how energy is passed from one living thing to another...

a)

ecosystem

b)

food chain

c)

habitat

59.

A cow eats grass found in its habitat. A cow is a

a)

producer

b)

carnivore

c)

herbivore

60.

A shark eats mostly fish and smaller ocean animals. A shark is a ...

a)

herbivore

b)

carnviore

c)

decomposer

61.

Bears eat berries and salmon. Bears are ...

a)

producers

b)

carnivores

c)

omnivores

62.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake

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