Home
Class 12
BIOLOGY
The second stage of hydrosere is occupie...

The second stage of hydrosere is occupied by plants like

A

Azolla

B

Typha

C

salix

D

Vallisneria

Text Solution

Verified by Experts

The correct Answer is:
D

Vallisneria is at second stage of hydrosere. It starts orginating in a pond with colonisation of some phytoplanktons which forms the pioneer plant community. The stages are
Ist -Bacteria , blue-green algae and algae
Iind-Hyndrilla , Potamogeton and Vallisneria
IIIrd-Nelumbo , Nymphaea , Trapa , Azolla and Wolffia
IV th -Typha and Sagitaria
Vth- Juncus and Cyperus
VIth-Salix and Populus , Almus.
Promotional Banner

Similar Questions

Explore conceptually related problems

The photon radiated from hydrogen corresponding to the second line of Lyman series is absorbed by a hydrogen like atom X in the second excited state. Then, the hydrogen-like atom X makes a transition of nth orbit.

the photon radiated from hydrogen corresponding to the second line of Lyman series is absorbed by a hydrogen like atom X in the second excited state. Then, the hydrogen-like atom X makes a transition of nth orbit.

A : Inmosses, second stage of gametophyte consists of upright, slender axes bearing spirally arranged leaves. R : This stage of gametophyte consists of sex organs.

In which of these plants , the diploid stage of their life is dependent on the haploid stage of their life ?

Expanded green petiole specialised for photosynthesis in some plants like Acacia auriculiformis is

Draw a well labelled diagram to show the anaphase stage of mitosis in a plant cell having four chromosomes.

Name the terminal stage of ageing in the life cycle of plants.

In the given figure A,B,C,D,E and F represent some stages of hydrosere, Select the correct statement regarding these.

The trees occupy the top vertical strata of a forest , shrubs the second and herbs and grasses occupy the bottom layers , this represents

The correct sequence of stages , through which the plants passes during its life span.