Consider the following pairs:
|
Aquatic Organism |
Definition |
|
1. Neuston |
A. These are unattached organisms that live at the air-water interface such as floating plants, etc. |
|
2. Benthos |
B. These organisms are those found living in the bottom of the water mass. |
|
3. Periphyton |
C. These organisms are swimmers and relatively large as they have to overcome the water currents. |
Which of the pairs given above is/are correctly matched?
1
1 only
2
2 and 3 only
3
1 and 2 only
4
3 only