Question

question 25 (1 point) match each ecological interaction with its correct description. column a 1. when one organism eats another for energy, one benefits while the other is harmed (+ / – relationship) 2. when two organisms attempt to use the same resources at the same time, both are harmed (– / – relationship) 3. when both organisms benefit from their interaction, both are helped (+ / + relationship) 4. when one organism benefits while the other is unaffected, neutral relationship (+ / 0 relationship) 5. when one organism takes resources from another, often without killing it, one benefits while the other is harmed (+ / – relationship) column b a. competition b. commensalism c. mutualism d. predation e. parasitism

Explanation:

1. The description "When one organism eats another for energy; one benefits while the other is harmed (+ / – relationship)" matches Predation (d), as predation is when one organism kills and eats another, benefiting the predator and harming the prey.
2. "When two organisms attempt to use the same resources at the same time; both are harmed (– / – relationship)" is Competition (a), as competition for resources harms both competitors.
3. "When both organisms benefit from their interaction; both are helped (+ / + relationship)" is Mutualism (c), where both species gain from the relationship.
4. "When one organism benefits while the other is unaffected; neutral relationship (+ / 0 relationship)" is Commensalism (b), where one benefits and the other is neither helped nor harmed.
5. "When one organism takes resources from another, often without killing it; one benefits while the other is harmed (+ / – relationship)" is Parasitism (e), as a parasite benefits at the expense of the host (harmed but not always killed immediately).

Answer:

1. d. Predation
2. a. Competition
3. c. Mutualism
4. b. Commensalism
5. e. Parasitism