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WorksheetsEnergy Flow
Total questions: 40
Worksheet time: 30mins
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 food chain?
a)
A chain that shows the flow of energy
b)
A triangle that shows trophic levels
c)
A chain used in fishing
5.
What is pictured in the diagram?
a)
A food web
b)
A food chain
c)
An energy pyramid
6.
What organisms are at the bottom of an energy pyramid?
a)
Producer
b)
Consumer
c)
Decomposer
d)
Scavenger
7.
How much energy is passed on to each trophic level in an energy pyramid?
a)
10%
b)
90%
c)
50%
d)
80%
8.
Which organisms have the most available energy in an energy pyramid?
a)
Producer
b)
Consumer
c)
Decomposer
d)
Scavenger
9.
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
10.
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
11.
Where do crickets get their energy?
a)
Cattails
b)
Marsh Grass
c)
Grasshoppers
d)
Shrews
12.
Who is the top predator on this food web?
a)
Hawk
b)
Snake
c)
Frog
d)
Cattail
13.
What is an example of a decomposer?
a)
Plum
b)
Mushroom
c)
Deer
d)
Bird
14.
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
15.
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
16.
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
17.
What is indicated by the diagram?
a)
Food web
b)
Food chain
c)
Food map
d)
Food menu
18.
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
19.
An organism that eats both plants and animals are know as a
a)
Carnivore
b)
Omnivore
c)
Herbivore
d)
Decomposer
20.
Autotrophs are organisms that produce their own food. Which do scientist classify as autotrophs?
a)
Chordates
b)
Fungi
c)
Plants
d)
Molds
21.
What is the first source of energy for all food webs?
a)
Plants
b)
Sunlight
c)
Mineral in the soil
d)
Decomposers
22.
Which ocean organism is considered a producer?
a)
Phytoplankton
b)
Zooplankton
c)
Small fish
d)
Whales
23.
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
24.
Which would be the appropriate term for an organism that eats a producer?
a)
scavenger
b)
decomposer
c)
secondary consumer
d)
primary consumer
25.
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
26.
Food chains include all of the following except
a)
Consumers
b)
Decomposers
c)
Ecosystems
d)
Producers
27.
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
28.
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.
29.
All of the following are consumers except
a)
Autotrophs
b)
Herbivores
c)
Heterotrophs
d)
Ominvores
30.
A tick and a dog have this type of relationship.
a)
mutualism
b)
commensalism
c)
neutralism
d)
parasitism
31.
A relationship between two organisms in which one organism benefits and the other is unharmed
a)
Mutualism
b)
Competition
c)
Parasitsm
d)
Commensalism
32.
Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.
a)
Mutualsim
b)
Parasitism
c)
Commensalism
33.
What type of symbiosis?
* Mycorrhizal fungi invade and live in or among roots cells of many plants. The plant provides nutrients to the fungi.
* The Mycorrhizal fungi help the host plant absorb inorganic nitrogen and phosphorus from the soil. Some mycorrhizal fungi also secrete antibiotics which may help protect their host from invasion by parasitic fungi and bacteria.
* Mycorrhizal fungi invade and live in or among roots cells of many plants. The plant provides nutrients to the fungi.
* The Mycorrhizal fungi help the host plant absorb inorganic nitrogen and phosphorus from the soil. Some mycorrhizal fungi also secrete antibiotics which may help protect their host from invasion by parasitic fungi and bacteria.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
34.
A relationship in which two species live closely together
a)
commensalism
b)
mutualism
c)
parasitism
d)
symbiosis
35.
What is predation?
a)
long lasting and physically close relationship in which at least 1 organism benefits
b)
Relationship in which 1 organism depends on another
c)
When organisms produce their own food
d)
An individual of one species hunts captures kills and consumes an individual of another species
36.
The largest population that an area can support is called the:
a)
limiting factor
b)
population density
c)
carrying capacity
d)
logistic growth
37.
When two species have the same niche, or are going for the same resource, they will:
a)
compete
b)
both die
c)
eat each other
d)
ignore each other
38.
A feeding relationship where one organism hunts and one is hunted.
a)
Commensalism
b)
Decomposistion
c)
Mutualism
d)
Predator-Prey
39.
An animal that hunts and consumes other organisms is known as a:
a)
Prey
b)
Decomposer
c)
Predator
d)
Commensalist
40.
A group of particular organisms that belong to the same species that live in the same habitat is known as a:
a)
Population
b)
Ecosystem
c)
Community
d)
Biome
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