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WorksheetsEcosystems and Organisms
Total questions: 58
Worksheet time: 30mins
Eagles nest high in dead trees. All of the dead trees in an area are knocked down during a flash flood. Why does the number of eagles in the area decrease?
the eagles start nesting in live trees instead of dead trees
the eagles no longer have a good place to build nests
the eagles have more materials with which to build nests
the eagles start nesting on the ground instead of in dead trees
A child has brown hair like his mother.
Inherited Trait
Acquired Behavior
Instinct
You play video games when you are home with the flu.
Inherited Trait
Acquired Behavior
Instinct
The arrows in the food chain show_______.
The path that the nutrients flow
Animals in order of size
Animals in alphabetical order
They are there for decoration
The food web below shows energy being directly transferred from each organisms?
Grasshopper and Fox
Owl and Snake
Bird and Grasshopper
Rabbit and Snake
What is the role of the rabbit?
It passes energy to the tree.
It passes energy to the mouse.
It receives energy from the jackal.
It passes energy to the jackal.
Both the frog and dog go through the same stages of their life cycle.
The dog goes through more changes in their life cycle than the frog.
The frog goes through more changes in their life cycle than the dog.
The frog and dog are the same organism.
Is the shape of a leaf an inherited trait or learned behavior?
Inherited trait
Learned behavior
Which component of the ecosystem would decrease if the cactus was cut down?
pollution
sunlight
shelter
decomposers
What is the main source of energy for all the plants in the diagram?
The watering can
The human
The Sun
The soil
Looking at the chart below what type of organism is the Alaskan brown bear?
Carnivore
Herbivore
Omnivore
Decomposer
Observe the food chain below. What would be the result of disease killing off most of the mouse population?
All populations would be relatively unaffected
The grasshoppers would become extinct
The grasshopper population would decrease; the owl population would increase
The grasshopper population would increase and the owl population would decrease
What is Acquired Behavior?
something that you are taught or have learned to do
Something you see.
What is an inherited trait?
Something that you learned how to do.
Something that you are born with.
What is an ecosystem?
A place where only animals (living things) interact with other living things only.
a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.
What is an environment?
all the living and non-living in an area.
Where animals live.
What is a producer?
They eat other organism for energy.
They make their own food, which creates energy for them to grow, reproduce and survive.
What is a decomposer?
They break down organic material, EX Fungi.
They eat living organisms.
What is a consumer?
An organism that generally obtains food by feeding on other organisms or organic matter due to lack of the ability to manufacture own food from inorganic sources; a heterotroph.
an organism, especially a soil bacterium, fungus, or invertebrate, that decomposes organic material.
What is a food chain?
a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
What is a food web?
A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community
a linear sequence of organisms through which nutrients and energy pass as one organism eats another.
What is a living thing?
anything that was never alive.
they respire, move, respond to stimuli, reproduce and grow, and are dependent on their environment.
What is a non living thing?
they respire, move, respond to stimuli, reproduce and grow, and are dependent on their environment.
anything that was never alive.
What is shelter?
A place where animals hide.
covered place which is made to protect people from bad weather or danger.
What is a habitat?
the natural home or environment of an animal, plant, or other organism.
A place where an animal lives.
An organism that makes its own food; an organism that does not consume other plants or animals
Consumer
Producer
Decomposer
Herbivore
Organisms which carry out the process of decomposition by breaking down dead or decaying organisms
Consumer
Producer
Decomposer
Carnivore
All the living and nonliving things in an area that interact with each other
Producers
Life cycle
Ecosystem
Environment
An organism that eats other living things to get energy; an organism that does not produce its own food (related word: consume)
Carnivore
Producer
Decomposer
Consumer
An animal that eats only other animals.
Consumer
Herbivore
Carnivore
Omnivore
A model that shows many different feeding relationships among living things
Food web
Food system
Food chain
Food diagram
An animal that consumes only plants
Carnivore
Decomposer
Omnivore
Herbivore
An animal that eats plants as well as other animals
Onmivores
Decomposers
Herbivores
Carnivores
A model that shows one set of feeding relationships among living things
Food web
Food system
Food chain
Food channel
Which ecosystem will you find a polar bear, seal, and penguin?
Tundra
Ocean
Rainforest
Desert
What do scientist study to determine long term adaptations and changes?
Maps
Tree rings
Food webs
Fossils
The ___________ is the temperature and rainfall in an ecosystem.
living things
precipitation
climate
habitat
The process by which the characteristics of a species change over many generations in response to the environment
Photosynthesis
Metamorphosis
Transformation
Adaptation
An organism, such as a plant that makes its own food.
biotic factor
abiotic factor
terrestrial
producer
an organism that breaks down wastes and the remains of other organisms into simpler substances
food chain
decomposer
consumer
aquatic
the path that energy takes from one organism to another in the form of food.
food chain
decomposer
consumer
aquatic
the food chains that overlap in an ecosystem
food chain
decomposer
food web
aquatic
A consumer that eats meat only
carnivore
decomposer
omnivore
herbivore
A consumer that eats plants only
carnivore
decomposer
omnivore
herbivore
A consumer that eats plants and animals
carnivore
decomposer
omnivore
herbivore
All energy in all ecosystems on earth first comes from
the sun
plants
water
animals
Photosynthesis occurs in the world's ocean mainly by these microorganisms.
phytoplankton
oxygen
fish
bears
What gas does photosynthesis produce that animals must have to survive?
methane
butane
oxygen
carbon dioxide
Which organisms would receive less energy if rabbits disappeared from this ecosystem?
toads
hawks
snakes
grasses
What would most likely happen if farmers started using pesticides that killed the insects living above the ground?
the flowering plant population would increase
the rat population would decrease
the snake population would increase
the corn population would decrease
Which food chain model shows an example of how energy moves through an ecosystem? (flow left to right)
tree leaves - caterpillar- toucan - puma
mushroom - redwood tree - raccoon - black bear
worm - carrot - chipmunk - hawk
plant plankton - dolphin - shrimp - mackerel
A student is developing a model of a prairie ecosystem.
Sun -- grass -- ?? -- snake -- owl
What organism could the student use to finish their model and replace the ??
aspen trees
buffalo
foxes
prairie dog
How would scientists model a food chain to show the flow of energy in a desert ecosystem? (flow left to right)
lizards -- cacti -- Sun -- insects -- foxes
Sun -- cacti -- insects -- lizards -- foxes
foxes -- lizards -- insects -- cacti -- Sun
insects -- Sun -- cacti -- foxes -- lizards
What would most likely happen to the populations of organisms in a forest ecosystem if there were no rain for a long period of time?
grass and tree populations would increase because they only need sunlight and soil to get nutrients
all the populations in the forest would remain the same because the amount of rainfall only affects non-living factors
hawk and rabbit populations would increase because they would not have to compete with plant populations for water
all the forest populations would decrease because producers would not be able to survive to supply nutrients to consumers
Which of the following would MOST LIKELY lead to a decrease in the mouse population?
an increase in the number of decomposers
an increase in the deer and frog populations
a decrease in the snake and hawk populations
a decrease in the amount of available sunlight
According to the diagram, the owl receives energy directly from the ...
hawk
grass
grasshopper
frog
Which organism will be negatively effected by a decrease in the mouse population?
grass
cricket
hawk
deer
What is the meaning of the word "community" in science?
all of the living things in a place
a place where only plants live
all of the nonliving things in a place
a place where only people live together
