Organisms that live on or obtain nutrients from another organism are known as:

• A. Herbivores
• B. Parasites
• C. Decomposers
• D. Producers

Answer: (B)

Verified step by step guidance

1. Step 1: Begin by understanding the definitions of each term provided in the options. For example, herbivores are organisms that primarily consume plants, decomposers break down dead organic matter, producers create their own food through processes like photosynthesis, and parasites live on or obtain nutrients from another organism, often causing harm.
2. Step 2: Focus on the key phrase in the question: 'organisms that live on or obtain nutrients from another organism.' This description aligns most closely with the definition of parasites.
3. Step 3: Eliminate options that do not match the description. Herbivores consume plants, not other organisms directly. Decomposers break down dead matter, not living organisms. Producers create their own food and do not rely on other organisms for nutrients.
4. Step 4: Confirm that parasites fit the description provided in the question. Parasites depend on a host organism for nutrients and often live on or inside the host.
5. Step 5: Conclude that the correct answer is 'Parasites,' as it matches the description given in the problem.