Ecological Relationships

A bear fishes for salmon. What is the bear?

• Predator

• Prey

• Mutualist

• Parasite

This is when both organisms in the relationship are benefiting from their interaction.

• Mutualism

• Parasitism

• Commensalism

• Predator-Prey

In this relationship, one organism benefits, and the other is harmed in an interaction.

• Mutualism

• Commensalism

• Parasitism

• Predator-Prey

In this relationship, one organism benefits and the other doesn't get anything.

• Mutualism

• Commensalism

• Parasitism

• Predator-Prey

In this relationship, one organism hunts, kills, and eats the other organism.

• Mutualism

• Commensalism

• Predator-Prey

• Parasitism

In this relationship, organisms fight for resources necessary for survival. It could be things like food, water, space, light, or mates.

• Predator-Prey

• Mutualism

• Parasitism

• Competition

The Egyptian plover eats the scraps out of the Nile Crocodile's mouth. The plover benefits because it gets a meal. The Crocodile benefits because its mouth gets cleaned. This is an example of...

• Mutualism

• Parasitism

• Commensalism

• Predator-Prey

A monarch caterpillar creates its cocoon on a milkweed plant. The caterpillar benefits because it gets a safe space to transform into a beautiful butterfly. The milkweed is not affected. This is an example of...

• Mutualism

• Parasitism

• Commensalism

• Predator-Prey

What is the relationship of the fox and the rabbit?

• predation

• competition

• mutualism

• parasitism

Otters float and sleep on forests of kelp in the water. The kelp provides them a place to anchor in the moving water. The otters eat the sea urchins that normally feed on the kelp. What kind of symbiotic relationship is this?

• predation

• parasitism

• mutualism

• commensalism