Symbiosis

Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.

• mutualism
• commensalism
• competition
• parasitism

A tapeworm and a cat have this type of relationship.

• mutualism
• parasitism
• commensalism
• competition

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

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

• commensalism
• mutualism
• parasitism
• predation

Which symbols best describe parasitism?

• +,+
• +,-
• +,0
• -,0

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

• Predation

• Parasitism

• Commensalism

• Mutualism

Barnacles create home sites by attaching themselves to whales. This neither harms nor benefits the whales.  What kind of relationship is this?

• Mutualism 
• Parasitism 
• Commensalism 

A bird makes a nest in a tree.  The bird gets a house, but the tree is unharmed.

• Commensalism
• Mutualism
• Parasitism

A squirrel hides his acorns from the chipmunks for the winter.

• commensalism
• parasitism
• competition
• mutualism

Mockingbirds will push the eggs out of a blue bird's nest and use the nest for it's own babies

• parasitism
• parasitism
• mutualism