A feeder fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

After walking through a field, you find a tick attached to your leg. What is the tick's relationship to you?

An organism that kills and eats another for food

Occurs when 2 or more organism use the same resource

A close long term association between 2 or more species

Relationship where both organism benefit

Relationship where one organism benefits and the other is neither harmed nor helped

An organism where one organism benefits and another is harmed

A tapeworm and a cat have this type of relationship.

What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

Which of the following is an example of mutualism in an ecosystem?

In a food web, what role do decomposers play?

What is the primary source of energy for most ecosystems?