Ecological Relationships Quiz Review

A symbiotic relationship in which both organisms benefit:

• Competition.
• Mutualism.
• Commensalism.
• Parasitism.

A relationship in which one organism benefits and the other is unaffected.

• mutualism
• parisitism
• symbiosis
• commensalism

______________ occurs when more than one individual or population tries to use the same limited resource.

• Niche
• Predator-prey
• Availability
• Competition

Which of the following best describes parasitism?

• +/+
• +/-
• +/0
• -/-

A feeder fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. This is an example of:

• Mutualism
• Commensalism
• Parasitism
• Decomposition

Predation is similar to _______________ in that both types of relationship benefit one of the interacting species while the other is harmed.

• commensalism
• competition
• mutualism
• parasitism

Barnacles sometimes live on the outside surface of other larger shelled organisms without causing any harm. What is the ecological relationship?

• Mutualism
• Parasitism
• Commensalism
• Predator-Prey

Ants protect soft bodied aphids and in return the aphids feed the ants a sugary drink. What is the ecological relationship?

• Cooperation
• Parasitism
• Commensalism
• Mutualism

A mosquito feeds off of the blood of different organisms. This usually causes discomfort to the organism and sometimes disease and death. This is an example of:

• Parasitism
• Decomposition
• Commensalism
• Mutualism

Lions and hyenas live in close proximity and eat the same types of foods. What is the ecological relationship?

• Mutualism

• Commensalism

• Parasitism

• Competition