Ecology Part 1

Two robins eating worms on the same lawn is an example of?

• Competition

• Commensalism

• Mutualism

• Parasitism

Predation is best described as?

• One organism capturing and eating another.

• Two organisms competing for limited resources

• An interaction in which two species benefit from each other

• an interaction in which one species benefits and other is not affected

• an interaction in which one species benefits and other is harmed

Aphids eat the sap from plants and excrete sticky waste that ants eat. The ants protect the aphids from predators. This type of interaction is called

• Competition

• Predation

• Commensalism

• Mutualism

An oak tree provides a sparrow a place to build a nest. The nest neither benefits nor harms the tree. What is the name for this type of relationship?

• Parasitism

• Commensalism

• Predation

• Competition

• Mutualism

The flea feeds on blood from the dog. There is no benefit to the dog and the itching and bites may lead to infection.

• Mutualism

• Commensalism

• Parasitism

• Competition

• Predation

The bacteria in the gut of the termite breakdown and feed on some of the cellulose taken in by the termite. The termite would be unable to digest cellulose without these bacteria and they gain an additional source of nutrition from the surplus digested cellulose. This type of interaction is called

• Parasitism

• Commensalism

• Mutualism

• Competition

• Predation

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. This type of interaction is called

• Parasitism

• Commensalism

• Mutualism

• Competition

• Predation

The tapeworm lives in the small intestines where it feeds and grows, robbing the human of essential nutrients. This type of interaction is called

• Parasitism

• Predation

• Competition

• Commensalism

• Mutualism

An antlion setting a sand trap to catch ants to feed on is what type of interaction?

• Competition

• Commensalism

• Parasitism

• Mutualism

• Predation

Two robins trying to get the same spot in a tree to build a nest is what type of interaction?

• Predation

• Mutualism

• Commensalism

• Parasitism

• Competition