The type of symbiotic relationship is called
mutualism
How does a food pyramid illustrate the amount of energy used in an ecosystem.
The energy decreases as you move up and increases as you move down
Where does the grass obtain its energy?
the sun
What are limiting factors of a natural ecosystem?
Shelter, nutrients, space, sunlight, and water
What is the relationship where one organism benefits and the other does not benefit but isn't harmed either.
commensalism
What are the name of organisms that belong in the 2nd trophic level. (What eats producers?)
the primary consumers
Through what other organism does the bird get its energy, besides from the grass?
the grasshopper
What is the effect to the population of prey animals when predators increase?
prey decrease in number
The relationship between two different organisms over a long period of time is called
symbiosis
If the fish eats producers, then the seal eats the fish. What level consumer is the seal?
secondary consumer
What is the missing part of the food web besides the energy source for the producers?
decomposers
According to the graph below, the reason why the rabbit population is so high COMPARED to the predator.
It is because there are fewer predators than prey.
When two similar trees compete for the same resources this is...
competition
What are the organisms that complete the cycle of energy/food in a natural ecosystem by breaking down dead matter.
decomposers
How does a food web or chain illustrate energy in an ecosystem.
It shows the flow of energy by arrows
What is the limiting factor trees would be competing for when there are too many trees in an area.
space
The dog in the relationship between the dog and the flea is the
host
What is an energy source or prey?
The grasshopper to the owl or bird
The rabbit to the fox
The mice to the owl
What is the effect on organisms if their habitat decreases?
a decrease in their numbers/population