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energy flow millers

Total questions: 30

Worksheet time: 20mins

Name
Class
Date
1.
Why is a shark a carnivore.
a)
because it eats seaweed
b)
because it eats dead animals
c)
because it eats sand 
d)
because it eats other animals
2.

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 the direction the energy is flowing between organisms.

d)

They represent how water is transferred within a habitat.

3.
The image provided is an example of a(n):
a)
Producer
b)
Autotroph
c)
Consumer
d)
Insect
4.
A wolf eats a rabbit, that just ate some berries.  What would you call the rabbit?
a)
Producer
b)
Omnivore
c)
Primary Consumer
d)
2nd order Heterotrph
5.
Autotrophs are organisms that produce their own food. Which do scientist classify as autotrophs?
a)
Chordates
b)
Fungi
c)
Plants
d)
Molds
6.
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
7.
An organism that obtains energy by consuming plants and animals.
a)
Omnivores
b)
Carnivores
c)
Herbivores
d)
Humans 
8.

Consumers that eat only plants

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

9.

Consumers, such as vultures, that feed on the bodies of dead organisms

a)

Carnivores

b)

Omnivores

c)

Herbivores

d)

Scavengers

10.

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

a)

chain

b)

web

c)

pyramid

d)

plate

11.

Which process do plants use to turn sunlight into food energy?

a)

photosynthesis

b)

cellular respiration

c)

transpiration

d)

evaporation

12.

Which organism is an example of a producer?

a)

moth

b)

mushroom

c)

rose bush

d)

cheetah

13.

Food chains show energy transfer between organisms. The size of a food chain can vary, yet there is a limit to the number of levels that a food chain can reach. Why is there a limit to the number of levels that a food chain can reach?

a)

Plants are not infinite in number.

b)

Producers are limited by consumers.

c)

Carnivores are too large to be eaten.

d)

Energy is lost at each trophic level.

14.

"Bio-" means

a)

life

b)

water

c)

Earth

d)

air

15.

Into which trophic level will herbivores most likely be placed?

a)

X

b)

W

c)

Y

d)

Z

16.

Which would most likely happen if the Bluegill population decreased significantly?

a)

The Zooplankton population would start being consumed by the Kingfisher population.

b)

The Crayfish population would compete with

the Minnows for food.

c)

The Minnows population would decrease in number.

d)

The Kingfisher population would decrease in number.

17.

Which is the correct representation of energy flow through an ecosystem?

a)

sun → autotrophs → heterotrophs

b)

water → squirrel → nuts

c)

sun → consumers → producers

d)

autotrophs → heterotrophs → sun

18.

As energy flows through each trophic level of the food chain approximately what percentage of energy is available to the next trophic level?

a)

100%

b)

10%

c)

1%

d)

50%

19.

In this food chain

Algae → Zooplankton → Small fishes → Squid → Shark

The Algae at the beginning of the food chain are

a)

Decomposers

b)

Consumers

c)

Heterotrophs

d)

Producers

20.

Algae generate 84,000 kcals of tissue. Which represents the amount of energy available for primary consumers in the food chain?

a)

84,000 kcals

b)

8,400 kcals

c)

840 kcals

d)

84 kcals

21.
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.
22.
Energy increases as you move up the food pyramid (from bottom to top).
a)
True 
b)
False
23.
In the energy pyramid here, which organisms have the most energy available?
a)
Producers
b)
Carnivores
c)
Herbivores
d)
Top Predator
24.
In the energy pyramid below, which organism has the least amount of energy available?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Top Predator
25.
If there is 1000 Kcal available in the producers in trophic level 1, how much energy is available in the herbivores in trophic level 2?
a)
10 Kcal
b)
1 Kcal
c)
100 Kcal
d)
1000 Kcal
26.

If only 10% of the energy in the pyramid is available as you move from one trophic level to the next, what happens to the other 90%?

a)

Passed on to decomposers

b)

Metabolized and "lost" as heat energy and waste

c)

Assembled into tissues of producers permanently

d)

False statement - 100% of the energy is available

27.

What level consumer is the frog

a)

Primary Consumer

b)

Secondary Consumer

c)

Tertiary Consumer

d)

Apex Predator

28.
An organism that eats both plants and animals are know as a 
a)
Carnivore
b)
Omnivore
c)
Herbivore
d)
Decomposer
29.
What is the first source of energy for all food webs?
a)
Plants
b)
Sunlight
c)
Mineral in the soil
d)
Decomposers
30.
Which animal is the apex predator?
a)
hawk
b)
lizard
c)
snake
d)
grass