Answer: The parasite lives in or on host, harming it without immediately killing it.
- A The host organism is understood to usually be killed by the parasite
- B The parasite lives in or on host, harming it without immediately killing it
- C Both interacting species are understood to mutually benefit from the relationship
- D The parasite is understood to usually be physically larger than its host
Correct answer: B. The parasite lives in or on host, harming it without immediately killing it
Explanation: Parasitism: parasite harms but usually does not immediately kill the host (needs host to survive). Predation: predator kills and eats prey.
Energy pyramid showing a simple food chain (producer to herbivore to carnivore) with energy decreasing roughly tenfold at each trophic level.
Concept context
Ecosystems, food chains, energy flow, nutrient cycles, biodiversity, and conservation.