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WorksheetsEcosystem & food web
Total questions: 47
Worksheet time: 24mins
Name
Class
Date
1.
A(n) ___ is all the living organisms that live in an area and all the nonliving features of their environment.
a)
Ecosystem
b)
Habitat
c)
Population
d)
Biome
2.
Biotic factors are the __________ factors in an environment.
a)
Living
b)
Nonliving
c)
Dead
d)
Competing
3.
What is an ecosystem?
a)
A habitat
b)
Where only biotic things live
c)
Where only abiotic things live
d)
Where abiotic and biotic things interact with each other
4.
What does the picture show?
a)
A Food Web
b)
An Ecosystem
c)
A Food Chain
d)
A nice scenery
5.
Why is a Food Web an important part of an ecosystem?
a)
It shows the transfer of energy between the living parts of an ecosystem
b)
It shows what animals eat
c)
It shows what a producer is
d)
It shows us how to find our food to eat
6.
What is a carnivore?
a)
An organism that only eats plants
b)
An organism that only eats other animals
c)
An organism that eats plants and animals
7.
What is a herbivore?
a)
An organism that only eats plants
b)
An organism that only eats other animals
c)
An organism that eats plants and animals
8.
What is a omnivore?
a)
An organism that only eats plants
b)
An organism that only eats other animals
c)
An organism that eats plants and animals
9.
How many primary producers are in this food web?
a)
0
b)
1
c)
2
d)
3
10.
A bug eating grass is what type of relationship?
a)
Bug is the producer - Grass is the decomposer.
b)
Bug is the consumer - Grass is the heterotroph.
c)
Bug is the decomposer - Tree is the consumer.
d)
Bug is the consumer - Tree is the producer.
11.
In the food web: What would happen next if humans killed all the grasshoppers?
a)
Owls would increase
b)
Shrews would decrease
c)
Grass would decrease
d)
Sun would incease
12.
Why are bacteria, fungi, and other decomposers important to an ecosystem?
a)
They recycle nutrients
b)
Produce food for consumers
c)
Provide water for animals
d)
Keep the soil from eroding
13.
Which organism is a producer?
a)
Snake
b)
Grasshopper
c)
Bacteria
d)
Sunflower
14.
If a hawk eats a snake, the snake is the...
a)
Predator
b)
Alpha
c)
Prey
d)
Producer
15.
All populations of different species living together in an area are called...
a)
Community
b)
Carnivores
c)
Population
d)
Ecosystem
16.
Consumers are found on which levels?
a)
1,2, & 3
b)
1, 3, 4, & 5
c)
2,3,4,& 5
d)
3,4,& 5
17.
All of the nonliving parts of an ecosystem are _______.
a)
biography
b)
biotic
c)
abiotic
d)
biology
18.
Which of the following is an abiotic factor?
a)
soil
b)
plants
c)
birds
d)
insects
19.
Which of these is not a biotic factor?
a)
Squirrel
b)
Mosquito
c)
Bear
d)
Water
20.
Which of the following is a herbivore?
a)
cricket
b)
frog
c)
hawk
d)
shrew
21.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
22.
How do producers obtain energy?
a)
They obtain energy from the sun.
b)
They consume plants.
c)
They consume primary consumers.
d)
They consume secondary consumers.
23.
A food web can be broken down into several seperate
a)
food chains
b)
food pyramids
c)
producers
d)
consumers
24.
What is a carnivore?
a)
an animal that gets energy by eating other animals
b)
An animal that gets energy by eating only plants
c)
an animal that gets energy by eating both plants and animals
d)
an animal that makes its own energy through photosynthesis
25.
Which of the following is NOT a consumer?
a)
grass
b)
dog
c)
shark
d)
fish
26.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
27.
What does a Secondary Consumer eat?
a)
Tertiary Consumers
b)
Primary Consumers
c)
Producers
d)
Secondary Consumers
28.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
d)
an animal that eats only herbs
29.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
d)
population
30.
Where do all life forms get their energy?
a)
Earth's Core
b)
Water
c)
Plants
d)
The Sun
31.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms.
d)
They represent how water is transferred within a habitat.
32.
What is this called?
a)
Food Web
b)
Food Chain
33.
What is this called?
a)
Food Web
b)
Food Chain
34.
__________ is an organism that eats BOTH plants and animals for energy.
a)
Omnivore
b)
Darnivore
c)
Carnivore
d)
Herbiovre
35.
Organisms that break down dead or decaying organisms.
a)
Decomposers
b)
Producers
c)
Consumers
d)
Detritivores
36.
Organisms that create their own food from sunlight energy
a)
Herbivore
b)
Omnivore
c)
Autotroph
d)
Heterotroph
37.
What is the term for each step in the transfer of energy and matter within a biological community?
a)
energy path
b)
food web
c)
trophic level
d)
food pyramid
38.
The image provided is an example of a(n):
a)
Carnivore
b)
Herbivore
c)
Producer
d)
Autotroph
39.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
40.
eats dead plants and animal remains
a)
detritivore
b)
decomposer
c)
omnivore
d)
producer
41.
Which type of organism obtains the energy it needs by feeding on other organisms?
a)
Autotroph
b)
Heterotroph
42.
Which type of organism breaks down dead organisms and waste, returning important nutrients to the environment?
a)
Detritivore
b)
Herbivore
c)
Omnivore
d)
Carnivore
43.
In the food chain shown, the small fish are best classified as which of the following tropic levels?
a)
Primary Consumers
b)
Secondary Consumers
c)
Tertiary Consumers
d)
Quaternary Consumers
44.
Which organism in the food chain shown would be considered a secondary consumer?
a)
Grass
b)
Gazelle
c)
Lion
d)
Bacteria
45.
Which of the following statements accurately describes the food chain above?
a)
Lions are the gazelles’ main source of food.
b)
Lions get all of the energy that they need from bacteria.
c)
Gazelles consume grass to gain both nutrients and energy.
d)
Bacteria produce the primary source of energy for the entire food chain.
46.
A food chain shows the transfer of ___ from one organism to another.
a)
matter
b)
consumers
c)
energy
d)
habitat
47.
In this food chain, what will happen if the frogs become extinct?
a)
The snakes will increase.
b)
The grasshoppers will decrease.
c)
The eagles will remain the same.
d)
The grasshoppers will increase.
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