What is the source of energy in a food chain?
soil
water
sun

How are plants classified?
producers
consumers
decomposers

How are lions and bears classified?
producers
consumers
decomposers

If the population of grasshoppers in an ecosystem increases what will happen to the grass?
decrease
remain the same
increase

What do all plants need to survive?
Sunlight, air, water
soil and food
sugar

If the population of mice decreases what will happen to the owl population in an ecosystem?
increase
decrease
remain the same

Why are decomposers important?
they recycle nutrients
they make food
they keep away predators

Which of the following is an example of a nonliving thing?
rock
bear
grass

What is the sun?
a comet
a planet
a star

What do you call all the members of the same species living in the same habitat?
a community
a population
a niche

What do you call an organism that hunts and kills its food?
prey
producers
predator

What do you call all the overlapping food chains in an ecosystem?
food web
transpiration
food maze