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WorksheetsEcosystem Review
Total questions: 20
Worksheet time: 20mins
Name
Class
Date
1.
In the following food chain:
Sun --> Clover--> Rabbit--> Fox
What best describes the role of the rabbit?
Sun --> Clover--> Rabbit--> Fox
What best describes the role of the rabbit?
a)
Carnivore
b)
Decomposer
c)
Herbivore
d)
Producer
2.
Which of the following is a correct food chain?
a)
human--> corn--> cow
b)
corn--> human--> cow
c)
corn--> cow--> human
d)
cow--> human--> corn
3.
Some sea grasses grow near a group of palm trees on a sandy shore. Which best describes the role of both the palm trees and sea grasses?
a)
They get energy from living organisms
b)
The turn decaying matter into nutrients
c)
They provide food for other organisms
d)
They absorb oxygen from the enironment
4.
Every organism receives energy from another source. Which of these organisms receives its energy directly from the Sun?
a)
grass
b)
deer
c)
fungus
d)
hawk
5.
Compost piles have many parts, such as leaves, moisture, vegetables, and microorganisms. Which part of a compost pile breaks down materials and adds nutrients to the soil?
a)
Leaves
b)
Moisture
c)
Vegetables
d)
Microorganisms
6.
Below is a sample food chain:
Acorn--> Squirrel--> Fox--> Mountain Lion
What will most likely happen if squirrels are removed from the food chain?
Acorn--> Squirrel--> Fox--> Mountain Lion
What will most likely happen if squirrels are removed from the food chain?
a)
The fox will eat acorns
b)
The fox population will decrease
c)
The trees will produce fewer acorns
d)
The mountain lion population will increase
7.
Frogs, hawks, grasshoppers, and snakes can be found in a forest ecosystem. How would energy most likely flow between the organisms?
a)
grasshopper, frog, snake, hawk
b)
hawk, snake, grasshopper, frog
c)
snake, grasshopper, frog, hawk
d)
frog, grasshopper, hawk, snake
8.
Vultures are scavengers that most likely help ecosystems by quickly consuming dead organisms and...
a)
speeding up the process of decay
b)
taking nonliving matter from the environment
c)
slowing the spread of disease
d)
helping to distribute seeds
9.
What does photosynthesis produce?
a)
carbon dioxide and nitrogen
b)
sugar and carbon dioxide
c)
oxygen and nitrogen
d)
sugar and oxygen
10.
Which of the following is a first level consumer?
a)
wolf
b)
rabbit
c)
carrot
d)
hawk
11.
How do producers get energy?
a)
eating plants and seeds
b)
using the sun to make food
c)
eating other animals
d)
breaking down organisms through decay
12.
Below is a sample food chain:
plant--> grasshopper--> frog--> snake
If a group of foxes is introduced into this ecosystem and begins eating the frog population, what is one thing that will most likely happen in this food chain?
plant--> grasshopper--> frog--> snake
If a group of foxes is introduced into this ecosystem and begins eating the frog population, what is one thing that will most likely happen in this food chain?
a)
Hawks will have more snakes to eat
b)
Fish will begin to eat grasshoppers
c)
There will be more grasshoppers in the area
d)
There will be more plants growing in the area
13.
Ryan learned that some organisms use sunlight to make their own food. Which organism is able to make its own food?
a)
Flamingo
b)
Luna Moth
c)
Sunfish
d)
Sunflower
14.
Animals that eat both plant matter and meat are referred to as
a)
decomposers
b)
scavengers
c)
herbivores
d)
omnivores
15.
Decomposers are organisms that obtain their food from dead organisms. Which of these would be classified as decomposers?
a)
algae, plants
b)
snakes, wolves, whales
c)
bacteria, fungi
d)
deer, rabbits, mice
16.
Aphids are small, soft-bodied insects that feed on certain types of plants. Which level of a food web would be occupied by an aphid?
a)
producer
b)
decomposer
c)
first-level consumer
d)
second-level consumer
17.
Which of the following is NOT an abiotic factor?
a)
temperature
b)
rainfall
c)
plant population
d)
terrain
18.
A plant gets the energy it needs from the Sun. The plant uses about 10% of the energy to carry on its life functions. The plant transfers approximately another 10% of the energy to the consumers in a food chain. What happens to most of the remaining energy?
a)
It is reabsorbed by the Sun
b)
It is recycled by decomposers
c)
It is stored in soil for later use
d)
It is released into the ecosystem as heat
19.
Which of the following biomes has a low diversity of plants and animals and has subsoil which is permanently frozen?
a)
desert
b)
tundra
c)
rainforest
d)
savanna
20.
Which process involves the decomposition of plants into the soil?
a)
Carbon
b)
Lunar
c)
Water
d)
Energy
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