Q16 / 200 · MHT CET - Medical 2026 (25 April Shift 1) · Biology
Given below are two statements regarding ecological succession.
Statement I: There is a change in the diversity of species of organisms.
Statement II: There is an increase in the number of species and organisms.
based on the above statements choose the correct option.
Statement I: There is a change in the diversity of species of organisms.
Statement II: There is an increase in the number of species and organisms.
based on the above statements choose the correct option.
- Correct answerABoth Statement I and statement II are correct.
- BBoth Statement I and statement II are incorrect.
- CStatement I is correct but Statement II is incorrect.
- DStatement I is incorrect but Statement II is correct.
Solution
Ecological succession is the gradual and fairly predictable change in the species composition of a given area.
During succession, some species colonise an area and their populations become more numerous, whereas populations of other species decline and even disappear.
In the successive seral stages, there is a change in the diversity of species of organisms, an increase in the number of species and organisms, as well as an increase in the total biomass.
Thus, both Statement I and Statement II are correct.
Answer: Both Statement I and statement II are correct.
During succession, some species colonise an area and their populations become more numerous, whereas populations of other species decline and even disappear.
In the successive seral stages, there is a change in the diversity of species of organisms, an increase in the number of species and organisms, as well as an increase in the total biomass.
Thus, both Statement I and Statement II are correct.
Answer: Both Statement I and statement II are correct.
Hence, the correct answer is option: 'A'.