WorksheetsProducer, consumer, decomposer 生产者、消费者、分解者
Total questions: 18
Worksheet time: 17mins
Name
Class
Date
1.
Why are plants called producers?
a)
They make carbon dioxide
b)
They decompose
c)
They make their own food
d)
They are omnivores
2.
Which of the following is NOT an example of a decomposer
a)
fungi
b)
hawk
c)
bacteria
d)
insects
3.
How do decomposers help other living things in ecosystems?
a)
They release oxygen into the atmosphere
b)
They turn sunlight into energy
c)
They release matter and nutrients back into the soil
d)
They get rid of dead animals so they don't smell bad
4.
Earthworm. Is it a...
a)
Producer
b)
Consumer
c)
Decomposer
5.
Frog. Is it a....
a)
Producer
b)
Conusmer
c)
Decomposer
6.
Cactus. Is it a.....
a)
Producer
b)
Consumer
c)
Decomposer
7.
Fungi. Is it a...
a)
Producer
b)
Consumer
c)
Decomposer
8.
Which type of organism needs to eat other plants and animals to survive?
a)
producer
b)
consumer
c)
decomposer
9.
Which type of organism breaks down waste and dead organisms, then returns the nutrients to the soil?
a)
Producer
b)
Consumer
c)
Decomposer
10.
Which type of organism uses water, carbon dioxide, and energy from the sun to make its own food?
a)
Producer
b)
Consumer
c)
Decomposer
11.
Which type of organism is responsible for recycling the remains of a dead plant or animal to the soil?
a)
Producer
b)
Consumer
c)
Decomposer
12.
Bacteria is an example of a
a)
producer
b)
consumer
c)
decomposer
13.
A dragonfly is a
a)
producer
b)
consumer
c)
decomposer
14.
Which choice has a group of only consumers?
a)
grass, cows, birds
b)
tigers, turtles, seaweed
c)
owl, snake, bear
d)
castus, sun, mushroom
15.
This organism traps its prey in a web, stings it, paralyzes it, and sometimes saves it to eat later. Is it a.....
a)
Producer
b)
Consumer
c)
Decomposer
16.
Which of the following types of organisms would benefit most directly from the products of decomposer organisms?
a)
Decomposers
b)
Primary consumers
c)
Secondary consumers
d)
Producers
17.
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
18.
Suppose that a llama is hit by a truck and dies. Where will most of the biological matter in the llama go next?
a)
To top level predatory animals
b)
To the soil to be used by plants
c)
To first order consumers that might eat the llama
d)
To microorganisms that decompose and recycle matter
100 %
