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Scope 3 & 4: Relationships and Flow of Energy in Ecosystems Quiz

Total questions: 28

Worksheet time: 21mins

Name
Class
Date
1.
Breaks down plant and animal remains and waste into molecules that producers reuse to make energy
a)
Producers
b)
Decomposer
c)
Consumer
d)
Prey
2.
Which is able to transform the energy of the sun to make food?
a)
Producer
b)
Decomposer
c)
Consumer
d)
Prey
3.
The cycles of matter on Earth depend on ______________ in which energy moves between organisms.
a)
energy transfer
b)
relationships and ecosystem
c)
food web
d)
food chain and complex
4.
Food webs are representations of the predator/prey __________ between species within a(n) _________ or habitat.
a)
energy transfer
b)
relationships and ecosystem
c)
food web
d)
food chain and complex
5.
These graphs show how two factors for a certain region changed over time: the number of predators that prey on mice and number of plants of the type that the mice eat. Based on the information from these graphs, in which of the following years would the population of mice have the highest?
a)
1996
b)
1998
c)
2000
d)
2002
6.
The table provides information on population density of mayflies, a kind of insect, in a certain area over a few years. Based on the population density provided, which year provides evidence that there was an increase in the population of birds that prey on mayflies?
a)
2005
b)
2006
c)
2007
d)
2008
7.
An example of a predator and a prey species for four separate ecosystems is provided: Which of the following predicts an accurate change to one of the populations of organisms due to a predator/prey interaction?
a)
When the population of sharks decreases because of fishing, the population of small fish will decrease.
b)
After a period of heavy rainfall and warmer temperatures, the population of mosquitos will increase.
c)
During hunting season, when many deer are killed by hunters, the mountain lion population will decline.
d)
When abundant resources allow the population of mice to increase, the population of snakes will decrease.
8.
A food web diagram is provided: Which of the following organisms depend only on producers for energy?
a)
Diatoms
b)
Shrimp
c)
Amphipods
d)
Squid
9.
The energy organisms need to live and grow first enters the ecosystem when -
a)
plants take in light energy from the sun
b)
decomposers break down dead organisms
c)
primary consumers eat plants for food
d)
secondary consumers eat primary consumers
10.
A food web diagram is provided: Which of the following is a path matter could flow through in this ecosystem?
a)
Sun -> grass -> robin
b)
Plant seeds -> field mouse -> robin
c)
Eagle -> deer -> plant seeds
d)
Grass -> deer -> mountain lion
11.
Compare mutually beneficial, predatory, and competitive interactions among species.
4 lines
12.
What do food chains demonstrate? What do they tell us about energy?
4 lines
13.

What is the energy source for producers, consumers, and decomposers?

4 lines
14.

How do symbiotic and predatory relationships differ?

4 lines
15.

In a given ecosystem, which of the following organisms is most likely to be at the top of the food chain?

a)

Rabbit

b)

Eagle

c)

Frog

d)

Grasshopper

16.

Which of the following best describes the role of a primary consumer in an ecosystem?

a)

Converts sunlight into energy

b)

Preys on secondary consumers

c)

Breaks down dead organisms

d)

Eats producers

17.

A diagram shows a simple food chain: grass -> rabbit -> fox. What would likely happen if the rabbit population decreased significantly?

a)

The grass population would decrease

b)

The fox population would increase

c)

The fox population would remain unchanged

d)

The grass population would increase

18.

What is the primary role of decomposers in an ecosystem?

a)

Break down dead organic matter

b)

Produce energy from sunlight

c)

Compete with producers for resources

d)

Consume primary consumers

19.

the number of individuals of a specific species living within a specific area

(a)  

20.

In a food chain, which of the following is most likely to be a tertiary consumer?

a)

Hawk

b)

Snake

c)

Frog

d)

Grasshopper

21.
1. What is energy?
a)
a. What animals absorb from the sun
b)
b. How much something weighs
c)
c. The ability to do work
d)
d. The speed of an animal
22.

What will happen if deer is missing in the food chain given above? Choose 2 correct options:

a)

The population of tiger decreases

b)

population of grass increases

c)

The population of tiger increases

d)

The population of grass decreases

23.
Question Image

Match each organism to its diet based on the food web.

a)
cricket
1.

herbivore

b)
frog
2.

carnivore

c)
hawk
3.

carnivore

d)

Marsh grass

4.

producer

24.
Imagine that the trees in a rainforest begin to die. This would affect the plants and animals that live beneath the trees in the forest because it would increase _______.
a)
rainfall
b)
sunlight
c)
shelter
d)
food
25.

12D: Students designed an experiment to model the carbon cycle. The students combined water and carbon dioxide-producing disks in a sealed flask. The flask represented Earth’s atmosphere, and the lamp represented the sun. Their design is shown. Which component can be added to the flask to reduce the concentration of carbon dioxide in the model atmosphere created by the disks?

a)

Bacteria to use carbon during nitrification

b)

Plants to absorb carbon in the process of photosynthesis

c)

Snails to use carbon through cellular respiration

d)

Mushrooms to absorb carbon during decomposition

26.

Which of the following will DECREASE the amount of carbon dioxide in the atmosphere?

a)

Combustion of fossil fuels

b)

Respiration

c)

Photosynthesis

d)

Decomposition

27.

Name the trophic level in Level 2.

a)

Primary

b)

Tertiary

c)

Consumer

d)

Secondary

28.

Name the correct trophic level for level 1.

a)

Tertiary

b)

Consumer

c)

Producer

d)

Quatemary

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