Identify the process in which both th e organisms are benefited in their close association.

Options

A. Saprophytic
B. Saprozoic
C. Symbiosis
D. Parasitic

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks for a process in which both organisms benefit from their close association.

2. **Analyzing the Options**:
- **Saprophytic**: This refers to organisms that feed on dead and decaying organic matter. In this case, only one organism benefits (the saprophyte), while the other (the dead matter) is already non-living. Thus, this option is incorrect.

- **Saprozoic**: This mode of nutrition involves organisms absorbing nutrients directly from their surroundings, typically seen in protozoa. Here, only one organism is involved, and there is no mutual benefit. Therefore, this option is also incorrect.

- **Symbiosis**: This is a close association between two different organisms where both benefit from the relationship. An example is the relationship between rhizobium bacteria and legume plants, where legumes receive fixed nitrogen and rhizobium gets carbohydrates. This option fits the criteria of the question.

- **Parasitic**: In this relationship, one organism (the parasite) benefits at the expense of the other (the host). The host suffers losses while the parasite gains nutrients. Hence, this option is incorrect.

3. **Conclusion**: The correct answer is **Symbiosis**, as it is the process in which both organisms benefit from their close association.

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