The organism which tolerate wide range of salinity called …….A ……..
II. The organism which tolerate narrow range of salinity called ……….B………..
Choose the correct option for A and B

Options

A. A -stenohaline , B-euryhaline
B. A-euryhaline, B-stenohaline
C. A-isohaline , B-euryhaline
D. A-heterohaline, B-isohaline

Answer

To solve the question regarding the classification of organisms based on their tolerance to salinity, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terminology**:
- We need to identify the terms used to describe organisms based on their salinity tolerance.

2. **Identify Organisms Tolerating Wide Range of Salinity**:
- Organisms that can tolerate a wide range of salinity levels are referred to as **Euryhaline** organisms. These organisms can survive in both freshwater and saltwater environments.

3. **Identify Organisms Tolerating Narrow Range of Salinity**:
- Organisms that can only tolerate a narrow range of salinity levels are known as **Stenohaline** organisms. These organisms are usually restricted to either freshwater or saltwater environments but cannot survive in the other.

4. **Fill in the Blanks**:
- For A (wide range of salinity): **Euryhaline**
- For B (narrow range of salinity): **Stenohaline**

5. **Final Answer**:
- A: Euryhaline
- B: Stenohaline