EASY
Earn 100
Fill in the blank with the correct word given in the bracket.
The species that invade the bare area are termed as
(endemic/pioneer) species.
50% studentsanswered this correctly
Important Questions on Ecosystem
HARD
Assertion (): A primary succession is more common than secondary succession.
Reason (): Biogeochemical cycling is absent in secondary succession.
EASY
MEDIUM
Match the following lists:
| List- | List- | ||
| (A) | Rooted hydrophyte with floating leaves | (I) | Limnophila |
| (B) | Submerged suspended hydrophyte | (II) | Vallisneria |
| (C) | Free floating hydrophyte | (III) | Utricularia |
| (D) | Amphibious plant | (IV) | Victoria regia |
| (V) | Salvinia |
The correct match is:
MEDIUM
Match the following?
| Column I | Column II | ||
| (a) | Predictable change in species composition | (i) | Equilibrium |
| (b) | Climax community | (ii) | Seral stages |
| (c) | Entire sequence community | (iii) | Ecological succession |
| (d) | Transitional community | (iv) | Sere |
| (v) | Succession | ||
EASY
EASY
MEDIUM
Give reasons for the following:
Climax stage is achieved quickly in secondary succession as compared to primary succession.
EASY
Ecosystem services are ____ understood. The value of ecosystem is larger than ____. Many of these services are ____ services and cannot be ____ by anyone. The ecosystem value is nearly ____ the globes GNP. The ecosystem services are delivered by ____.
A. Living stuff.
B. Poorly
C. Twice
D. Non-market
E. Global economy.
F. Owned
HARD
EASY
EASY
MEDIUM
A) Pollinators play significant role in the production of food crops.
B) One of the threats to pollinators is habitat destruction by land use.
C) The climax community remain stable as long as environment is changing with adoptions.
D) Secondary succession will be a slow process compared to the primary succession.
