WorksheetsEcosystem Test Review
Total questions: 30
Worksheet time: 34mins
How many carnivores are shown in this food chain?
6
4
5
3
Which of the following is a herbivore?
cricket
frog
hawk
shrew
All organisms of a species that live in the same place at the same time are called
species
predation
population
habitat
The living parts of an ecosystem are called...
species
abiotic factors
biotic factors
population
The non-living parts of an ecosystem are called...
biotic factors
abiotic factors
competition
niche
What percentage of energy is transferred from one trophic level to the next trophic level?
Approximately 25% of the energy is transferred to the next trophic level.
Only about 10% of the energy in one level is transferred to the next.
Approximately 50% of the energy is transferred
50% of the energy is transferred from one trophic level to the next
Parasitism -
One species benefits and the other is not harmed
Both species benefit
One species benefits and the other is harmed
It is a close relationship between two different species of organisms living together
The decomposers do the following...
Eat only producers
Help decompose the remains of dead plants and animals or waste
Produce their own food
Eat only other consumers
What makes producers special?
They are not alive
They depend on other organisms for food
They can produce their own food through photosynthesis
They are omnivores
If a disease affects the snake population in the food chain shown, what will be the initial effect on the populations of hawks and rabbits?
The populations of hawks and rabbits will decrease.
The populations of hawks and rabbits will increase.
The hawk population will increase. The rabbit population will decrease.
The hawk population will decrease. The rabbit population will increase.
What is a carnivore?
An organism that eats plants.
An organism that produces its own energy.
An organism that eats meat.
An organism that eats dead things.
What is a consumer?
An organism that produces its own food
An organism that eats plants and animals for energy
An organism that eats dead plants and animals for energy
An organism that eats whatever it wants
What is a producer?
An organism that eats other plants and animals
An organism that eats dead plants or animals
An organism that produces its own food
An organism that does not eat food
All the energy on Earth comes from......
The sun
The moon
Decomposers
Producers
The process of making food using sunlight and other materials is.....
Decomposers
Consumers
Producers
Photosynthesis
Struggle or effort between animals for limited resources
limiting factor
carrying capacity
habitat
competition
The ______________ of an organism is the place where it lives and looks for food.
limiting factor
carrying capacity
habitat
competition
In what type of symbiotic relationship do both organisms benefit?
Commensalism
Mutualism
Parasitism
a detailed interconnection diagram showing all the food chains in a particular area.
food chain
food pyramid
food web
food cycle
an organism that eats primary consumers
producer
primary consumer
secondary consumer
tertiary consumer
an organism that eats secondary consumers
producer
primary consumer
secondary consumer
tertiary consumer
series of steps in an ecosystem where organisms transfer energy by eating and being eaten
food chain
food plate
food web
food cycle
an organism that obtains energy by feeding on other organisms
consumer
abiotic factors
biotic factors
producer
What do lizards eat?
mice
grasshoppers
hawks
grass
The arrows in a food chain show:
the flow of energy
the loss of energy
how animals use energy to move in a habitat
how plants produce their own energy.
Using the food chain, choose the organisms in the correct order.
microscopic plants > water fleas > small fish > perch
microscopic plants > perch > water fleas > small fish
perch > water striders > small fish > tadpoles
microscopic plants > tadpoles > water boatman > perch
In the ocean, a sea anemone attaches itself to the shell of a hermit crab. The poisonous arms of the sea anemone protect the hermit crab, while the movement of the hermit crab brings food to the sea anemone. What is the best description of the relationship between the sea anemone and the hermit crab?
commensalism
mutualism
parasitism
A wolf and a rabbit are an example of what ecological relationship?
predator/prey
cooperation
mutualism
Consumers obtain their energy:
Directly from sunlight
By breathing
By eating other organisms
All of the above
What would happen to this food chain if there was no grass?
The grasshoppers would eat the mice and the snakes would leave.
The mice would have more grasshoppers to eat.
The snake population would increase.
The grasshopper population would decrease.
