Ecology and Evolution Review

In this type of relationship, both organisms benefit (+,+)

• Predation

• Mutualism

• Commensalism

• Parasitism

A mosquito biting a human's arm is an example of this type of relationship

• Mutualism

• Parasitism

• Predation

• Commensalism

A lion hunting and killing and zebra is an example of this relationship

• Competition

• Mutualism

• Commensalism

• Predation

When one organism benefits and another organismsis neither harmed nor helped

• Commensalism

• Mutualism

• Parasitism

• Herbivory

These organisms have the most energy on an energy pyramid

• Tertiary Consumers

• Decomposers

• Producers

• Primary Consumers

Energy originates from this...

• Food

• Producers

• Decomposers

• The sun

Examples of autotrophs are

• Consumers

• Producers

• Decomposers

• The Sun

Organisms that eat other organisms are considered

• Heterotrophs

• Decomposers

• Producers

• Autotrophs

What percentage of energy is passed on to the next trophic level in an energy pyramid.

• 5%

• 50%

• 100%

• 10%

What determines whether the relationship between two organisms is commensalism, mutualism, or parasitism?

• Whether the organisms live with each other

• How long each organisms survives

• How each organism reproduces

• Having a positive, negative, or neutral effect on each other