Question

barnacles sometimes live on the outside surface of other larger shelled organisms without causing any harm. what is the ecological relationship?mutualismcommensalismpredator-preyparasitismcows and sheep both eat the same types of food in areas of maryland. what is the ecological relationship?commensalismcooperationcompetitionparasitismants protect soft bodied aphids and in return the aphids feed the ants a sugary drink. what is the ecological relationship?cooperationcompetitionmutualism

Explanation:

• First question: Commensalism is a relationship where one organism benefits and the other is neither helped nor harmed. Barnacles benefit (e.g., access to food as water flows by) while the larger shelled organism is unharmed.
• Second question: Competition occurs when two or more organisms vie for the same limited resource (here, food). Cows and sheep eating the same food in an area shows competition.
• Third question: Mutualism is a relationship where both organisms benefit. Ants get food (sugary drink) and aphids get protection.

Answer:

• First question: B. Commensalism
• Second question: C. Competition
• Third question: C. Mutualism