What is cooperation?
Botflies lay their eggs under the skin of large mammals, including humans. The larvae hatch and feed on the flesh of the animal causing a terrible itch. This is an example of _____________________.
Parasitism
What kind of organism is always at the bottom of an energy pyramid?
Producers
Two male deer fighting over a mate is an example of what?
Competition
Cowbirds follow cows around and feed on ticks and other bugs attracted to the cows. The cows enjoy being cleaned. This is an example of _____________.
Mutualism
How much energy is passed on to the next-level consumer in an energy pyramid?
10%
What interaction is shown in this photo between the lions and hyenas?

Competition
Mistletoe seeds stick to tree trunks. The plant grows on the trunk, and its roots penetrate the wood allowing to take water and nutrients from the tree. This is an example of _________________________.
Parasitism
Are there typically going to be more producers or third-level consumers in an energy pyramid?
Producers
How might the prey population increasing affect the predator population?
It will also increase
What are the 3 forms of symbiosis?
Commensalism, Mutualism, Parasitism
What happens to the 90% of an organism's energy that is not passed on to the consumer that eats it?
It is used up and lost as heat.
Carpenter ants live in colonies of hundreds of related females. They work together to carve out a nest in old wood. This example best illustrates _______________.
Cooperation
Define Commensalism
One organism benefits and the other is unaffected.
What is another word for a third-level consumer?
Tertiary consumer