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Energy Pyramids, Food Chains & Webs

Total soal: 30

Worksheet time: 29mins

Nama
Kelas
Tanggal
1.

How much energy (in kcal) is found at the third trophic level?

a)

5000 kcal

b)

5 kcal

c)

0.005 kcal

d)

50 kcal

2.

An organism that gets energy from breaking down dead organisms, non-living material, or waste is a(an) -

a)

producer

b)

consumer

c)

decomposer

d)

autotroph

3.

All first level consumers are -

a)

producers

b)

herbivores

c)

carnivores

d)

decomposers

4.

Which of the following correctly shows how energy flows through a food chain?

a)

carnivore---> producer---> herbivore

b)

Sun---> producer---> herbivore---> carnivore

c)

Sun---> herbivore---> carnivore---> producer

d)

producer---> carnivore---> herbivore

5.

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

a)

chain

b)

web

c)

pyramid

d)

plate

6.

A food _______ consists of many overlapping food ________.

a)

web, chains

b)

chain, webs

c)

pyramid, webs

d)

web, pyramids

7.
In this food chain, what will happen if the frogs become extinct?
a)

The snake population will increase.

b)

The grasshopper population will decrease.

c)

The eagle population will remain the same.

d)

The grasshopper population will increase.

8.
If these organisms were arranged in a food pyramid, which organism would have the least amount of total energy available?
a)
coyote
b)
insect
c)
lizard
d)
shrub
9.

If the phytoplankton in the energy pyramid in the figure have 20,000 kcal of energy, how much energy does the mackerel have?

a)

20.000 kcal

b)

2,000 kcal

c)

1,000 kcal

d)

200 kcal

e)

20 kcal

10.

Which organisms in the food web are secondary consumers ?

a)

Butterfly

b)

Corn

c)

Rat

d)

Thrush

e)

Fruit Fly

11.

Check the box next to all the organisms in this food web that are autotrophs.

a)

Grasshoppers

b)

Grains

c)

Birds

d)

Grasses

e)

Carrots

12.

Check the boxes next to the organisms in the food web that are tertiary consumers

a)

Eagle

b)

Wolf

c)

Python

d)

Dragonfly

e)

Frog

13.

If the crustaceans in this energy pyramid have 1,000kcal of energy, how many kilocalories of energy will the sharks have.

a)

1,000 kcal

b)

500 kcal

c)

100 kcal

d)

10 kcal

e)

1 k cal

14.

Which organism is the carnivore?

a)
b)
c)
d)
15.
All food webs and food chains begin with _________________.
a)
primary consumer
b)
producers
c)
secondary consumers
d)
predators
16.

What percentage of energy is passed on from one tropic level to the next?

a)

10%

b)

50%

c)

90%

d)

100%

17.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
18.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
19.
Which level will contain plants?
a)
A
b)
B
c)
C
d)
D
20.

In a food web, arrows represent -

a)

the flow of energy.

b)

who gets eaten.

21.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
22.

Grizzly bears eat seeds, berries, roots, grasses, fungi, deer, elk, fish, and insects. This would make them a(n)...

a)

Detritivore

b)

Carnivore

c)

Herbivore

d)

Omnivore

23.
An organism that eats the secondary consumer.
a)
Primary Consumer
b)
Secondary Consumer
c)
Tertiary Consumer
d)
Consumer
24.

Which animal is the apex predator of this food web?

a)

mosquito

b)

alligator

c)

frog

d)

raccoon

25.
What might happen if you remove a primary consumer from the ecosystem?
a)
There would be more food for secondary consumers.
b)
The number of primary consumers would increase.
c)
The number of plants would increase.
d)
The number of secondary consumers would increase.
26.
How do producers obtain energy?
a)
They conduct photosynthesis.
b)
They consume plants.
c)
They consume primary consumers.
d)
They consume secondary consumers.
27.
Which of the following is not a secondary consumer?
a)
hawk
b)
lizard
c)
mouse
d)
snake
28.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
29.
Which level has the most energy available?
a)
producer
b)
primary consumer
c)
secondary consumer
d)
tertiary consumer
30.

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

a)

It increases

b)

It decreases

c)

It stays the same

d)

Nothing

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