Question

tapeworms that feed off the intestines of humans and make us sick is an example of
predation
commensalism
mutualism
parasitism

Explanation:

To solve this, we analyze each ecological interaction:

• Predation: One organism kills/eats another (e.g., lion and deer). Tapeworms don’t kill humans for food, so not this.
• Commensalism: One benefits, the other is unaffected. Tapeworms make humans sick, so the human is harmed, not unaffected. Eliminate.
• Mutualism: Both organisms benefit. Tapeworms harm humans, so this is incorrect.
• Parasitism: One organism (parasite, tapeworm) benefits at the expense of the host (human), causing harm. This matches the tapeworm - human interaction.

Answer:

D. Parasitism