Year 9 Science Ecology week 1 - Relationships between organisms

What kinds of relationships would you find in a food web?

• Mutualism

• Commensalism

• Predator-prey

• Symbiosis

A predator-prey relationship is where...

• One animal benefits from the other and the other is harmed.

• The two species compete for food, resources or a mate.

• One animal benefits from the other and the other is unaffcted.

• One animal hunts and consumes the other.

A mutualism is a relationship where...

• One animal benefits from the other and the other is harmed.

• One animal benefits from the other and the other also benefits.

• One animal benefits from the other and the other is unaffcted.

• The two species compete for food, resources or a mate.

A commensalism is a relationship where...

• One animal benefits from the other and the other is harmed.

• One animal benefits from the other and the other also benefits.

• One animal benefits from the other and the other is unaffcted.

• The two species compete for food, resources or a mate.

A parasitism is a relationship where...

• One animal benefits from the other and the other is harmed.

• One animal benefits from the other and the other also benefits.

• One animal benefits from the other and the other is unaffcted.

• The two species compete for food, resources or a mate.

The relationship between a bear and salmon would be best described as...

• Mutualism

• Predator-prey

• Commensalism

• Competition

The relationship between a bees and flowers would be best described as...

• Mutualism

• Parasitism

• Commensalism

• Competition

The relationship between a remora fish and a shark would be best described as...

• Mutualism

• Parasitism

• Commensalism

• Competition

The relationship between a tapeworm and human host would be best described as...

• Mutualism

• Parasitism

• Commensalism

• Competition

When a woodpecker and a squirrel compete for habitats in trees it is called...

• Interspecific competition

• Intraspecific competition