Q. Which of the following is/are characteristic/s of “ecotone”?
1.It may be very narrow or quite wide.
2.It is a zone of tension.
3.Well-developed ecotones contain some organisms which are entirely different from those of the adjoining communities.
How many of the statements given above are correct?
Answer: C
Notes:
Explanation: Characteristics of Ecotone:
- It may be very narrow or quite wide. It has conditions intermediate to the adjacent ecosystems. Hence it is a zone of tension.
- It is linear as it shows progressive increase in species composition of one in coming community and a simultaneous decrease in species of the other outgoing adjoining community.
- Well-developed ecotones contain some organisms which are entirely different from those of the adjoining communities.
Source: Shankar IAS

