Question

11 remora fish are small fish that make their niche by picking up the scraps that sharks leave behind while feeding. the shark makes no attempts to prey on the remora fish. organ not harmed/not helped a parasitism b predation c commensalism d competition

Explanation:

• Parasitism: One organism benefits at the expense of the other (host). Here, the shark is not harmed, so this is not parasitism.
• Predation: One organism (predator) kills and eats another (prey). The shark does not prey on the remora, so this is not predation.
• Commensalism: One organism benefits, and the other is neither helped nor harmed. The remora benefits from the shark's scraps, and the shark is unaffected. This fits the definition of commensalism.
• Competition: Organisms compete for resources (e.g., food, space). There is no indication of competition between remora and shark.

Answer:

C. Commensalism