Worksheets
Name
Grade 7 - Biology - Quiz 2 - Food
Webs/Ecosystems Relationships
Class
Total questions: 20
Worksheet time: 10mins
Date
Instructor name: Joe Viloria
1.
What is the purpose of a food chain?
a) To help put nutrients back into the soil
b) To convert energy from the sun into food
c) To describe how organizations get energy
d) To produce energy for the ecosystem
from eating other organizations
2.
3.
4.
5.
6.
What is the role of plants in a food chain?
a) They decompose nutrients
b) They are secondary consumers
c) They are primary consumers
d) They produce energy for the ecosystem
What do animals in a food chain consume?
a) Only other animals
b) Only plants
c) Nutrients from the soil and water
d) Plants and other animals
What are secondary consumers in a food chain?
a) Plants
b) Worms
c) Birds
d) Seeds
What do decomposers do in a food chain?
a) Produce energy for the ecosystem
b) Eat plants and other animals
c) Help put nutrients back into the soil
d) Convert energy from the sun into food
What are the top predators in a food chain?
a) Wolves
b) Grasshoppers
c) Bears and orcas
d) Snakes
7.
8.
What is the main source of energy in a food chain?
a) Plants
b) The soil
c) Animals
d) The sun
What is the difference between a food chain and a food web?
a) A food chain has more levels than a food web b) A food web includes more organisms than a
food chain
c) A food web only includes plants and animals,
d) A food chain includes decomposers, while a
while a food chain includes all living things
9.
10.
food web does not
What is the role of chlorella in a food chain?
a) To convert energy from the sun into food
b) To produce energy for the ecosystem
c) To help put nutrients back into the soil
d) To provide energy for the body
What is the hierarchy of organisms in a food chain?
a) Plants, secondary consumers, primary
b) Plants, primary consumers, secondary
consumers, top predators
c) Top predators, secondary consumers,
consumers, top predators
d) Secondary consumers, primary consumers,
primary consumers, plants
11.
Which of the following best describes a predator-prey relationship in an ecosystem?
a) A predator-prey relationship is a relationship
12.
plants, top predators
b) A predator-prey relationship is a relationship
where two organisms have no interaction with
where two organisms cooperate to obtain
each other.
food.
c) A predator-prey relationship is a relationship
d) A predator-prey relationship is a relationship
where one organism hunts and consumes
where two organisms compete for the same
another organism for food.
resources.
In the food chain, what role do decomposers play?
a) Decomposers help plants grow by providing
nutrients.
c) Decomposers are predators that feed on
other organisms.
b) Decomposers break down dead organisms
and organic matter.
d) Decomposers are responsible for pollination
in plants.
13.
When a bird species feeds on insects, and in doing so, it helps control the insect population, this is
an example of:
14.
a) Herbivory
b) Mutualism
c) Predation
d) Commensalism
Which of the following terms refers to the specific role an organism plays within an ecosystem,
including what it eats and its interactions with other organisms?
15.
a) Population
b) Ecological niche
c) Community
d) Habitat
If one organism benefits while the other is neither helped nor harmed in a relationship, it is an
example of:
16.
a) Parasitism
b) Commensalism
c) Mutualism
d) Symbiosis
Which of the following is a biotic factor in an ecosystem?
a) Rocks
b) Plants
c) Water
d) Sunlight
17.
What do you call a diagram that shows the energy transfer in an ecosystem, typically in the shape
of a pyramid?
18.
a) Ecological pyramid
b) Energy pyramid
c) Ecosystem pyramid
d) Food pyramid
A snake that eats a mouse, which in turn eats grass, is an example of a:
a) Tertiary consumer
b) Secondary consumer
c) Primary consumer
d) Decomposer
19.
What does a herbivore primarily feed on in an ecosystem?
a) Rocks
b) Meat
c) Water
d) Plants
20.
Which of the following is an example of mutualism?
a) Bees pollinating flowers
b) A lion hunting a zebra
c) A mosquito biting a human
d) Tapeworms in a dog's intestines