Worksheets4th - Flow of Energy in Ecosystems
Total questions: 34
Worksheet time: 25mins
What is the source of all energy on Earth?
The Moon
The Stars
The Sun
Mars
Organisms that make their own food
Producer
Consumer
Decomposer
Organisms that obtain energy by feeding on other organisms
Producer
Consumer
Decomposer
Organisms that break down wastes and dead organisms and return the raw materials to the environment
Producer
Consumer
Decomposer
Consumers that eat only plants
Carnivores
Omnivores
Herbivores
Scavengers
Consumers that eat only animals
Carnivores
Omnivores
Herbivores
Scavengers
Consumers that eat both plants and animals
Omnivores
Carnivores
Herbivores
Scavengers
Consumers that feed on the bodies of dead organisms
Carnivores
Omnivores
Herbivores
Scavengers
A food _______ consists of many overlapping food ________.
web, chains
chain, webs
pyramid, webs
web, pyramids
In the food web above, what eats the rabbit?
Fox
Hawk
Vole
Grass
In an ecosystem, snakes feed on frogs, which feed on mosquitoes. Use of a bug spray has decreased the number of mosquitoes. What will probably happen to the number of frogs and snakes?
Frogs will increase, snakes will increase
Frogs will increase, snakes will decrease
Frogs will decrease, snakes will increase
Frogs will decrease, snakes will decrease
This is an example of a(n)
omnivore
carnivore
herbivore
decomposer
What do producers need, other than sun, for photosynthesis?
Water and CO2
Glucose and O2
Love and happiness
Carbohydrates and water
The process by which producers make their own food is called --
photosynthesis
migration
food chain
hibernation
what should you say when you see an arrow in a food chain or food web?
"passes energy to"
"eats"
"takes energy from"
all of the above
In the food chain below, which is the producer?
grass --> mouse --> snake --> hawk
grass
mouse
snake
hawk
The Mayfly is a food source for which 3 organisms?
Using the food web what would happen if the eagle became extinct?
The frog population would decrease.
The frog population would increase.
The butterfly population would increase.
The snake population would decrease.
Which of the following is NOT a consumer
grass
dog
shark
fish
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.
Look at the food web.
Which animals eat the rat?
wildcat, owl, and rattlesnake
wildcat, owl, and rabbit
wildcat, owl, and lion
wildcat, owl, and fox
What part of the plant soaks up water for photosynthesis?
roots
leaf
petals
stem
Where do plants get the energy for photosynthesis to take place?
nutrients in the soil
the sun
chlorophyll
bee pollination
The diagram shows a plant which is placed in a box. The plant is watered every day but died after one week. Why?
The plants did not get enough air
The plant did not get enough water
The plant did not get enough sunlight
What are the three elements needed by the plant in the process of photosynthesis?
air, sunlight, carbon dioxide
carbon dioxide, soil, water
carbon dioxide, water, sugar
water, carbon dioxide, sunlight
What color is chlorophyll?
green
yellow
pink
blue
where in plants does most photosynthesis occur?
roots
leaves
flowers
stems
