The gemmae produced by some liverworts function as:
1. A water gathering structure
2. A light capturing structure
3. A sexual structure
4. An asexual structure
In mosses, the sex organs are seen in:
1. Protonema stage
2. Leafy stage
3. Capsule of the sporophyte
4. Seta of the sporophyte
Identify the statement that most accurately describes the plant shown in the given figure:
1. This the male prothallus of Marchantia; A is antheridiophore and B is Gemma cup
2. This the female prothallus of Marchantia; A is archegoniophore and B is Gemma cup
3. This the male prothallus of Sphagnum; A is antheridiophore and B is Gemma cup
4. This the female prothallus of spahgnum; A is archegoniphore and B is Gemma cup
Read the following statements (IV) and answer the question which follows them
I. | In liverworts, mosses and ferns gametophytes are free living. |
II. | Gymnosperms and some ferns are heterospores. |
III. | Sexual reproduction in Fucus, Volvox and Albugo is oogamous. |
IV. | The sporophyte in liverworts is more elaborate than that in mosses. |
How many of the above statements are correct?
1. One
2. Two
3. Three
4. Four
Spore dissemination in some liverworts is aided by:
1. | elaters | 2. | indusium |
3. | calyptra | 4. | peristome teeth |