Front

Fleas feed on blood from dogs. There is no benefit to the dog and the itching and bites might lead to infection. Options: Parasitism, Predation, Competition, Mutualism.

Back

Parasitism

Front

Algae provides food for fungus, which in turn provides a suitable living environment for algae.

Back

Mutualism

Front

Tapeworms live in the small intestines where it feeds and grows, robbing the human of essential nutrients. Options: Parasitism, Predation, Competition, Mutualism.

Back

Parasitism

Front

The cattle egret follows herds of cattle and eats the insects that the cattle stir up as they move through the grassland. The cattle appear to be unaffected by the egrets.

Back

commensalism

Front

The Remora fish swim alongside the shark and take scraps of food that the shark drops during feeding. The shark does not eat the Remora and appears unaffected by its presence.

Back

commensalism

Front

What type of relationship exists between termites and the bacteria in their gut?

Back

mutualism

Front

Small relatives of the jellyfish called hydroids, travel to their feeding grounds by sharing snail shells with hermit crabs. The crabs are unaffected because the hydroids and the crabs eat different foods.

Back

Commensalism

Front

Coyotes chasing rabbits

Back

Predation

Front

Mistletoe lives on and feeds off of a tree. The tree is harmed, but not immediately.

Back

Parasitism

Front

A mosquito feeding off of a human.

Back

Parasitism