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WorksheetsMatter and Energy in Ecosystems
Total questions: 45
Worksheet time: 1hrs 8mins
Which of the following organisms is a producer?
fox
eagle
snake
grass
Which of the following organisms is a primary consumer?
snake
grasshopper
fox
squirrel
Which of the following organisms uses photosynthesis to get the energy it needs to survive?
grasshopper
mouse
grass
deer
Which of the following organisms is a herbivore?
lion
jackel
snake
rabbit
What would happen to the mouse population if the snake population moved out of the area represented by the food web?
The mouse population would increase.
The mouse population would neither increase nor decrease.
The mouse population would decrease.
What might happen if you remove a primary consumer from the ecosystem?
There would be more food for secondary consumers.
The number of producers would increase.
The number of primary consumers would increase.
The number of secondary consumers would increase.
A consumer that hunts is called ____.
a producer
nothing
a herbivore
a predator
A snake eats a mouse. The snake and mouse are demonstrating _________.
mutualism
predator/prey
competition
parasitism
All energy on Earth ultimately comes from what source?
water
consumers
sun
flowers
An organism that needs to eat other organisms to obtain energy is known as a __________.
autotroph
consumer
producer
mutualist
What does a food chain represent?
How all living organisms within a habitat are connected.
How plants create their own food.
All of the things that a particular animal eats.
A single path of energy transfer within a habitat.
The arrows in a food chain or web represents what?
They point to the organisms that is next to them.
They show what direction the energy is flowing between organisms.
It shows how sunlight flows within an ecosystem.
They represent how water is transferred within a habitat.
What does a food web represent?
All connections of energy flow throughout all organisms in a habitat.
A single pathway or energy flow between organisms.
The specific ways that mutualism is carried out.
How carnivores get their food.
How many predators does the mouse have?
1
2
3
4
The Krill is eaten by which consumer?
blue whale
leopard seal
squid
crab
What type of consumer is the jackel?
omnivore
producer
carnivore
herbivore
An organisms that lives by breaking down dead organic matter into tiny parts is a ____________.
scavenger
consumer
carnivore
decomposer
What is an organism that can make its own food called?
producer
consumer
herbivore
carnivore
What level on an energy pyramid has organisms having the MOST energy?
top level
middle level
bottom level
What level on an energy pyramid has organisms having the LEAST energy?
top level
middle level
bottom level
What model shows how much energy is available at each trophic level in an ecosystem?
food chains
food webs
energy pyramids
What is a model that shows feeding relationships within an ecosystem. These are interconnected food chains.
food chains
food webs
energy pyramids
What is a series of events in which one organism eats another and obtains energy
food chains
food webs
energy pyramids
This is an organism at the trophic level of an ecosystem that eats plants or algae. Usually consists of herbivores.
primary consumer
secondary consumer
tertiary consumer
What is the food chain in order
secondary consumer,primary consumer,producer,tertiary
producer, primary consumer,secondary consumer,tertiary
primary consumer,secondary consumer,producer,tertiary
tertiary,primary consumer,secondary consumer,producer
What is the ultimate source of energy for all living things on Earth?
Producers
Consumers
The Sun
Plants
Which choice below transfers the most energy in a food web?
Producer
Omnivore
Consumer
Decomposer
Which choice correctly describes the energy transfer in one food chain of this partial food web?
Energy is transferred from white spruce to spruce grouse to lynx.
Energy is transferred from soapberries to snowshoe hare to lynx.
Energy is transferred from lynx to red squirrel to white spruce.
Energy to transferred from soapberries to red squirrel to coyote to lynx.
A partial food web of the Sagebrush-Steppe in the Western U.S. is shown below.
What role does the prickly pear cactus play in the food web above?
Producer – providing energy to consumers
Consumer – providing energy to producers
Decomposer – returning vital nutrients to the soil
Predator – providing energy to consumers
Bears eat berries, nuts, and fish
carnivore
omnivore
herbivore
In a food chain, as observed in a study by Lily, energy_______ as you move from producers to top predators.
Increases
Decreases
Stays the same
Changes up and down
Using the diagram provided, which of the following energy pyramids best represents the data?
What will most likely happen to the hawks and rodents if the insects were removed?
There will be more hawks and rodents
The rodents will eat more hawks
There will be fewer rodents and hawks
The hawks will eat more rodents
Which organism below has no predator in this food web?
Bobcat
Opossum
Turkey
Grasshopper
Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?
There would be a decrease in the small bird population.
There would be a decrease in the grass/flowers population.
There would be a decrease in the mice population.
There would be an increase in the grass/flowers population.
