WorksheetsEnergy Flow
Total questions: 30
Worksheet time: 17mins
Name
Class
Date
1.
What is the source of energy for food chains/food webs?
a)
the sun (even if not pictured)
b)
Producers
c)
Fertilizer
d)
JOHN CENA!
2.
What is a producer?
a)
Organisms that make their own food
b)
Organisms that eat other organisms for energy
c)
organisms that break down dead organisms
3.
What is photosynthesis?
a)
When organisms use radiant energy to make their own food
b)
When organisms adapt and can make their own light
c)
when plants make lights
d)
When plants take selfies
4.
What is a consumer?
a)
An organism that makes it's own food
b)
An organisms that eats other organisms for energy
c)
An organism that breaks down dead organisms
5.
What is a food chain?
a)
A chain that shows the flow of energy
b)
A triangle that shows trophic levels
c)
A chain used in fishing
6.
What is pictured in the diagram?
a)
A food web
b)
A food chain
c)
An energy pyramid
7.
What organisms are at the bottom of an energy pyramid?
a)
Producer
b)
Consumer
c)
Decomposer
d)
Scavenger
8.
How much energy is passed on to each trophic level in an energy pyramid?
a)
10%
b)
90%
c)
50%
d)
80%
9.
Which organisms have the most available energy in an energy pyramid?
a)
Producer
b)
Consumer
c)
Decomposer
d)
Scavenger
10.
What happens to a population in a community when there is an abundance of food?
a)
Population Increases
b)
Population Decreases
c)
Population Remains Unchanged
11.
What is biodiversity?
a)
When there is a variety of organisms in an area
b)
When there are NOT a variety of different organisms in an area
12.
Where do crickets get their energy?
a)
Cattails
b)
Marsh Grass
c)
Grasshoppers
d)
Shrews
13.
Who is the top predator on this food web?
a)
Hawk
b)
Snake
c)
Frog
d)
Cattail
14.
What is an example of a decomposer?
a)
Plum
b)
Mushroom
c)
Deer
d)
Bird
15.
Which organisms in the diagram have the largest total energy to give to other organisms?
a)
Cattails and Marsh Grass
b)
Hawks and Snakes
c)
Crickets and Grasshoppers
d)
Shrews and Frogs
16.
Which organism is likely to be at the beginning of a food chain for a pond?
a)
Sunfish
b)
Freshwater shrimp
c)
Paramecium
d)
Green Algae
17.
Which of these best explains why predators need plants, such as grass, in their ecosystem?
a)
Plants are a large part of their diets
b)
Plants provide safety for predators
c)
Plants break down the organisms that the predators eat
d)
Plants provide food for their animals that the predators eat
18.
What is indicated by the diagram?
a)
Food web
b)
Food chain
c)
Food map
d)
Food menu
19.
What do the arrows indicate in a food web?
a)
What eats what
b)
Where the energy is being transferred
c)
How the animals are related
20.
An organism that eats both plants and animals are know as a
a)
Carnivore
b)
Omnivore
c)
Herbivore
d)
Decomposer
21.
Autotrophs are organisms that produce their own food. Which do scientist classify as autotrophs?
a)
Chordates
b)
Fungi
c)
Plants
d)
Molds
22.
What is the first source of energy for all food webs?
a)
Plants
b)
Sunlight
c)
Mineral in the soil
d)
Decomposers
23.
Which ocean organism is considered a producer?
a)
Phytoplankton
b)
Zooplankton
c)
Small fish
d)
Whales
24.
If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.
a)
hawk population
b)
rabbit population
c)
wildflower population
d)
grass population
25.
Which would be the appropriate term for an organism that eats a producer?
a)
scavenger
b)
decomposer
c)
secondary consumer
d)
primary consumer
26.
In this food web, which two organisms could be harmed if the mouse population were to decrease?
a)
Deer and caterpillar
b)
Wolf and snake
c)
Oak and grass
d)
Hawk and songbird
27.
Food chains include all of the following except
a)
Consumers
b)
Decomposers
c)
Ecosystems
d)
Producers
28.
If 25,000 kg of vegetation is planted in this ecosystem, how would the lion population change?
a)
Decrease by 2,500 kg
b)
Decrease by 25,000 kg
c)
Increase by 250 kg
d)
Increase by 250,000
29.
In an ecosystem, beetles eat grain, and lizards eat the beetles. Which statement is true?
a)
Beetles are carnivores.
b)
Beetles are producers.
c)
Lizards are decomposers.
d)
Lizards are consumers.
30.
All of the following are consumers except
a)
Autotrophs
b)
Herbivores
c)
Heterotrophs
d)
Ominvores
100 %
