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WorksheetsEcosystems Quiz - 502
Total questions: 20
Worksheet time: 10mins
What is the role of a decomposer in an ecosystem?
capture the energy of sunlight for plants to make food
produce oxygen for plants and animals
break down dead organisms and their wastes
These fallen apples will decompose and some substances from the decomposing apples will return to the apple trees. Which of the following decomposer wastes can apple trees in this forest use again?
oxygen released into the water
methane released into the air
carbon dioxide released into the air
How is this tree meeting its energy needs? Use evidence from the picture to make your claim.
The tree has no leaves, therefore it is using energy stored in its body to meet its energy needs.
The tree has no leaves, therefore it is using energy found in soil to meet its energy needs.
The tree has no leaves, therefore it is using energy directly from the sun to meet its energy needs.
This otter is eating a fish she captured in the river where she lives. Where does the otter store the energy from this meal in case she will need it weeks later when she cannot find food?
It is stored in fat, because it is stored in for long periods of time.
It is stored in fat, because is stored in for short periods of time.
It is stored in sugar, because it is stored in for long periods of time.
Organisms that live in an ecosystem must be adapted to local conditions. How do you predict organisms such as bears and birds will respond to the temperature patterns in a temperate forest ecosystem?
Bears would grow very warm fur and birds would grow warm feathers in the spring.
Bears would hibernate and birds would fly somewhere warm in winter.
Bears and birds would stay high up in trees during all times of the year.
You build a compost pile using kitchen waste like egg shells and banana peels. Three weeks later, you check your compost. Which of the following observations is the BEST evidence of decomposition?
There was no color change.
There was no change in smell.
The kitchen scraps became smaller over time.
Photosynthesis is the process that plants use to make food from water and carbon dioxide. Which part of this plant is mainly responsible for capturing carbon dioxide for photosynthesis?
A
B
C
D
The photo below shows a coral reef ecosystem. Which components of this ecosystem interact?
The coral growing on the reef and the water around them because water is the most important part of all ecosystems.
The organisms and the sunlight that shines through the water because all ecosystems need sunlight in order to survive.
All the organisms, coral, sand, and water because ecosystems are made up of all living and nonliving things inside them.
When an animal dies, what does the once-living matter from the animal’s body do?
regenerates so the animal can live again.
remains exactly the same for millions of years.
is broken down and passes into the soil and air.
The picture below is a type of model. A model can be used to show the different parts of a system. Scientists use models of nature to study how animals interact with each other and their environment in an ecosystem.
How could you BEST improve the model to show how the different parts of this ecosystem interact?
change the colors of the model
label the living and nonliving things
show how deep the water is
During photosynthesis, plants produce sugar and ______.
light
water
oxygen
carbon dioxide
Bacteria have no way to store excess food, so in order to stay active, they... choose ALL correct answers
live in places where they can be surrounded by food sources.
live in places where they can be surrounded by food sources.
live in places where they can be surrounded by food sources.
live in places where they can be surrounded by food sources.
Tiny plantlike organisms called _______ are food for many pond animals.
algae
cattails
water lilies
Energy enters most ecosystems as ______
moving air
water currents
sunlight
The process that breaks down food into simple materials that an animal’s body can use is called ______.
photosynthesis
circulation
digestion
Which organisms are examples of decomposers?
trees
fungi
lions
All the living and nonliving things that interact in an area make up a(n) ______.
organism
nutrient
ecosystem
A(n) ________ is any organism that makes its own food.
animal
producer
herbivore
A lion is a(n) _______, an organism that gets food by eating other organisms.
plant
producer
consumer
Compost takes advantage of natural processes to
provide animals with clean drinking water.
release harmful metals into the environment.
remove harmful metals from the environment.
help return matter to their ecosystem.
