Which of the following statement is correct ?

Options

A. Water is most important factor
B. Euryhaline organisms can't tolerate wide range of salinity
C. Population is group of individuals of same species
D. Ecosystem term was given by Ernst Haeckel

Answer

To determine which statement is correct, let's analyze each option step by step:

1. **Option 1: Water is the most important factor.**
- This statement is incorrect. While water is indeed a crucial factor for life, it is not the most important. Temperature is considered the most important environmental factor influencing organisms. Therefore, this option is not correct.

2. **Option 2: Euryhaline organisms can't tolerate a wide range of salinity.**
- This statement is also incorrect. Euryhaline organisms are known for their ability to tolerate a wide range of salinities, meaning they can survive in both fresh and saltwater environments. An example of such an organism is the molly fish, which can live in various salinity conditions. Thus, this option is incorrect.

3. **Option 3: Population is a group of individuals of the same species.**
- This statement is correct. A population is defined as a group of individuals of the same species that live in a specific geographic area and have the potential to interbreed. Therefore, this option is correct.

4. **Option 4: The term ecosystem was given by Ernst Haeckel.**
- This statement is incorrect. The term "ecosystem" was introduced by Arthur Tansley in 1935. Ernst Haeckel is known for coining the term "ecology." Therefore, this option is incorrect.

**Final Conclusion:**
The correct statement is: "Population is a group of individuals of the same species."

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