WorksheetsLiving Systems Investigation
Total questions: 24
Worksheet time: 1hrs 10mins
The diagram above shows a food chain for a marine ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?
X is seaweed; Y is a crab
X is seaweed; Y is water
X is a shark; Y is seaweed
X is a catfish; Y is seaweed
How does a Kodiak bear most likely use a fish that it catches?
It throws the fish back in the water because it only fishes for sport.
It eats the fish for energy.
It gives the fish to other animals.
It keeps the fish as a pet.
All living organisms must take in energy in order to grow and survive. For animals, this energy comes from
food they eat.
moonlight.
sounds they hear.
motors in cars they drive.
The diagram above shows a food chain for a tundra ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?
X is an arctic hare; Y is a reindeer
X is an arctic hare; Y is the Sun
X is grass; Y is an arctic hare
X is the Sun; Y is an arctic hare
The diagram above shows a food chain for a prairie ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?
X is the Sun; Y is the grass
X is a rabbit; Y is the Sun
X is an owl; Y is the Sun
X is the Sun; Y is a coyote
Stephanie has had a long day. She is tired and wants to go straight to bed. Her mother makes her sit down and eat dinner first. After eating, Stephanie no longer feels so tired. Why did eating make Stephanie feel less tired?
because food provides energy
because it is too early to go to bed
because food contains caffeine
because exercise makes a person more alert
The diagram above shows a food chain for a desert ecosystem. Which of the following organisms best completes boxes X and Y to show how energy flows through this food chain?
X is an ant; Y is a cactus
X is a cactus; Y is grass
X is a cactus; Y is a mouse
X is a beetle; Y is a cactus
The arrows in the food web above show the direction in which energy flows. The food web is model. It shows that all the _____________ animals get by eating other organisms comes from the Sun
light
energy
protein
vitamins
The ultimate source of energy for almost all living organisms is
the Sun.
bacteria.
plants.
animals.
The Sun is an important source of energy on planet Earth. Which of the organisms below would die off if the Sun stopped producing energy? Select the correct image. More than one image may be correct.
Why do all organisms need food?
to make them look colorful
to help them feel full
to give them energy
to play with
A food web for a prairie ecosystem is shown above. Food webs show how energy gets transferred among living things. All plants and animals need energy in order to survive. Based on this information, which statement is correct?
Only the frogs could survive without the Sun.
Only the grass could survive without the Sun.
The wasps and the spiders could survive without the Sun.
None of the organisms in the food web could survive without the Sun.
The Sun provides energy. Plants use the energy to make food. How do some animals get energy? *
Animals get energy by eating the plants.
All animals get energy by hibernating.
Animals absorb the Sun's energy and make their own food
Animals do not need energy.
The diagram above shows a food web. In this food web, which of the following is necessary in order for all of the organisms to survive?
. caterpillar
fox
partridge
Sun
Through the process of photosynthesis, producers such as phytoplankton change sunlight into sugars. Cedric redraws a food chain to show one more level before the phytoplankton. What would this new level be?
plants
zooplankton
the Sun
water
What is a producer?
Organism that makes its own energy
Organism that breaks down dead organisms
Organism that eats other organisms for food and energy
What is a decomposer?
Organism that makes its own energy
Organism that breaks down dead organisms
Organism that eats other organisms for food and energy
What is a consumer?
Organism that makes its own energy
Organism that breaks down dead organisms
Organism that eats other organisms for food and energy.
All energy on Earth ultimately comes from what source?
Water
Consumers
Sun
Oxygen
What are plants called in a food web?
Producers
Decomposers
Consumers
Scavengers
Click on the image to make it larger. Choose all that apply: The hawk gets its energy from...
mouse
wildflowers
rabbit
snake
Click on the image to make it larger. Choose all that apply: Choose the living things that are producers.
mouse
wildflowers
grass
snake
Why might an organism have more than one arrow coming from them in a food web?
More than one organism may eat them.
They may eat more than one other organism.
This organism gets its energy from multiple sources.
What does a food web represent?
All connections of energy flow throughout all organisms in an ecosystem.
The specific ways that mutualism is carried out.
A single pathway or energy flow between organisms.
How carnivores get their food.
