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WorksheetsEcosystem Review
Total questions: 15
Worksheet time: 20mins
Name
Class
Date
1.
Which of the following organisms is a decomposer?
a)
flower
b)
mushroom
c)
spider
d)
turtle
2.
Which of these organisms is a producer?
a)
Sow Bugs
b)
Lion
c)
Deer
d)
Grass
3.
Which is most responsible for recycling dead plants and animals in an ecosystem?
a)
water
b)
fish
c)
bacteria
d)
insects
4.
Rabbits eat plants and vegetables. What role do rabbits play in their environment?
a)
consumer
b)
producer
c)
decomposer
d)
predator
5.
Mark studied a forest ecosystem. Here are a list of organisms that he observed: daffodils, hawks, berry bushes, deer, raccoons, and foxes.
Which of the organisms are predators?
Which of the organisms are predators?
a)
daffodils and berry bushes
b)
deer and raccoons
c)
deer and foxes
d)
hawks and foxes
6.
What is a humans role in a food web?
a)
decomposer
b)
consumer
c)
producer
d)
scavenger
7.
What is the main source of energy for all organisms in most food chains?
a)
water
b)
green plants
c)
sunlight
d)
decomposers
8.
Which organims captures the sun's energy?
a)
mouse
b)
deer
c)
cougar
d)
grasses
9.
Here are a list of organisms : mouse, hawk, green plant, and snake.
Which of these shows the correct flow of energy through the food chain?
Which of these shows the correct flow of energy through the food chain?
a)
mouse - hawk - green plant - snake
b)
green plant - hawk- mouse - snake
c)
green plant - mouse - snake - hawk
d)
mouse - snake - green plant - h
10.
Which describes energy through this word web?
a)
Mice get energy from Owls.
b)
Mice get energy from the Green Plant.
c)
Green Plants get energy from rabbits and goats.
d)
Jackal's get energy from Lions.
11.
Which of the following use sunlight to produce food that others eat?
a)
Snail
b)
Fish
c)
Dragon Fly
d)
Green Algae
12.
Review the food chain.
Grass - Grasshopper - Frog - Snake - Hawk
If the number of snakes suddenly increases, which population will most likely DECREASE first?
Grass - Grasshopper - Frog - Snake - Hawk
If the number of snakes suddenly increases, which population will most likely DECREASE first?
a)
hawks
b)
grass
c)
frogs
d)
grasshopper
13.
Rabbits feed on grasses and other plants. Foxes feed on rabbits. Land development removes many of the grasses and plants eaten by the swamp rabbits.
How would this change MOST LIKELY affect the animals in this community?
How would this change MOST LIKELY affect the animals in this community?
a)
The rabbits would compete with foxes for food.
b)
The foxes would not be affected because they do not eat plants.
c)
The foxes would have less food because there would be fewer rabbits.
d)
The rabbits would have less food because the foxes would leave.
14.
Why do ducks and some birds migrate South during the winter?
a)
They have too many enemies.
b)
They have few too many places to hibernate.
c)
They have a difficulty finding food.
d)
They have to lay their eggs near water.
15.
How do decomposers help an ecosystem?
a)
They release oxygen.
b)
They provide shelter.
c)
They use sunlight to make food.
d)
They put nutrients into the soil that plants use to grow.
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