Science 5 Chapter 4 Test Question Preview (ID: 35009)
Ecosystems.
TEACHERS: click here for quick copy question ID numbers.
During photosynthesis, plants give off
a) carbon dioxide
b) water
c) nitrogen
d) oxygen
During cellular respiration, organisms give off
a) nitrogen
b) oxygen
c) carbon dioxide
d) sugar
What is the source of energy for most plants?
a) sunlight
b) clouds
c) water
d) animals
The shortest food chains consist of
a) a consumer and a decomposer
b) two producers
c) two consumers
d) a producer and a decomposer
Which describes both a food chain and a food web?
a) both contain only consumers
b) both begin with a producer
c) both contain multiple ways that energy flows
d) both must include a carnivore
The relationship between an owl and a mouse is an example of
a) competition
b) symbiosis
c) predator and prey
d) producer and consumer
Which event would cause an ecosystem to change quickly?
a) a climate change
b) an earthquake
c) a lake drying up
d) a rock becoming soil
Nonnative animal populations can grow rapidly in a new ecosystem because
a) predators in the ecosystem are not used to hunting them
b) they have no competition for resources in the ecosystem
c) nonnative species are always at the top of food chains
d) they are predators
Why is a producer important in an ecosystem?
a) It makes energy that other organisms in the ecosystem can use.
b) Other organisms can hide in the producer.
c) They are prey for animal organisms.
d) All decomposers need to eat producers.
Why are consumers important to an ecosystem?
a) They consume all of the energy from the producers.
b) They control producer populations and provide some energy for decomposers.
c) They are decomposed very rapidly.
d) They are all predators.
Why are decomposers important to an ecosystem?
a) They create energy from sunlight.
b) They carry energy to consumers.
c) They return minerals to the soil for producers.
d) They turn rocks into soil for producers.
How could the removal of one species affect the entire ecosystem?
a) Animals that depend on that species for energy would have to move away or die.
b) It can't, since most predators eat a variety of animals.
c) It leaves empty spaces in the ecosystem that nothing can fill.
d) All species in the ecosystem would die.
Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 35009 in the upper right hand corner or click here.
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 35009 in the upper right hand corner or click here.
TEACHERS / EDUCATORS
Log In | Sign Up / Register
Log In | Sign Up / Register