MEDIUM
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The diagram refers the biotic succession on bare rock (lithosere). At which stage (s) (as labelled A, B, C, D, E and F) will you find plants like Solidago, Festuca

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Important Questions on Ecological Adaptations, Succession and Ecological Services

MEDIUM
Choose the right sequence of hydrarch succession from the following:
EASY
In hydroseric succession, which stage comes just before sedge meadow stage?
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

 

HARD

Assertion (A): A primary succession is more common than secondary succession.

Reason (R): Biogeochemical cycling is absent in secondary succession.

MEDIUM

Match the following lists:

  List-I   List-II
(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:

EASY
A violent volcanic eruption wiped out most of the life forms in an island. Over different forms of simple organisms colonised this region, followed by the emergence of other organisms such as shrubs, woody plants, invertebrates and mammals. This ecological process is referred to as
EASY
Select the incorrect statement with reference to ecosystem service O2 release?
EASY
The organisms which invade a bare area to initiate an ecological succession are known as
MEDIUM

Give reasons for the following:

Climax stage is achieved quickly in secondary succession as compared to primary succession.

EASY
Fill up the blanks with suitable words.
Ecosystem services are __i__ understood. The value of ecosystem is larger than __ii__.  Many of these services are __iii__ services and cannot be __iv__ by anyone. The ecosystem value is nearly __v__ the globes GNP. The ecosystem services are delivered by __vi__.
A. Living stuff.
B. Poorly
C. Twice
D. Non-market
E. Global economy.
F. Owned
HARD
What is the difference between hydrarch succession and xerarch succession.
EASY
What is Ecological succession? How Hydrarch succession is different from Xerarch succession?
MEDIUM
Choose the incorrect statements.
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.