
If the population of snakes increase, what will happen to the hawk population?
What is the hawk population will increase?
"Nature's recyclers" return decayed organisms back into the environment.
What are decomposers?
The four ecosystem services.
What is provisional, regulatory, cultural, and supporting?
Beetles living in a hollow log and feeding on decaying wood is an example of.
Hint: The role of a organism in an ecosystem.
What is a niche?
A variety of different species in a given area.
What is biodiversity?
The amount of energy that is passed to each tropic level as each level loses energy to heat to the environment.
What is 10%?
The original source of energy for this food web.
What is the sun?
Responsible for the mass extinction of the dinosaurs.
What are asteroids?
Ticks feeding on the blood of a dog.
What is parasitism?
Introducing wolves to an ecosystem overcrowded by deer will cause biodiversity to.
What is increase?
The level on energy pyramids that has the highest population.
What are producers?
Is the predator of the primary consumers.
What is secondary consumer?
The two gases that are exchanged between plants and animals.
What is oxygen and carbon dioxide?
Clownfish provide food scraps to anemone while the anemone provides protection to clownfish.
What is mutualism?

Most effective method that will not harm the crops.
What is R?
The level on an energy pyramid with the least amount of energy.
What are tertiary consumers?

The primary consumers in this food web.
What are Rabbits, Insects, and Slugs?
When nitrogen is made usable for plants and organisms.
What is Nitrogen fixation?
Barnacles travel by sticking on whales without harming them to get to food sources.
What is commensalism?
When an organism undergoes changes to help them better survive the environment.
What are adaptations?

Has more energy available than the sea lion.
What is the herring and algae?

The affect on the food web if the fish population decreased.
What is the seal and pelican population will decrease?
An increase in deer population will cause this to happen to the vegetation of the area.
What is decrease?
Cheetahs hunt and catch gazelles.
What is a predator/prey relationship?
Species that is introduced to an area that has a negative impact on that ecosystem.
What are invasive species?