Symbiosis refers to which description?

• A. A relationship where both parties benefit
• B. A relationship where one party dominates the other
• C. A relationship between two individuals that is advantageous or necessary to both
• D. A relationship that ends quickly

Answer: (C)

Symbiosis is about a close, long-term interaction between two organisms living together. The description that fits best is a relationship between two organisms that is advantageous or necessary to both. This highlights mutual benefit and interdependence, which are core to symbiotic ties. The other options miss important aspects: one-sided dominance isn’t what symbiosis emphasizes, a relationship that ends quickly doesn’t capture the enduring, living-together aspect, and saying both benefit is narrower than the idea of a sustained, interdependent partnership.