Examine the figure given below and select the right option giving all the four parts (a, b, c and d) correctly identified.
(a) | (b) | (c) | (d) | |
1. | Archegoniophore | Female thallus | Gemma cup | Rhizoids |
2. | Archegoniophore | Female thallus | Bud | Foot |
3. | Seta | Sporophyte | Protonema | Rhizoids |
4. | Antheridiophore | Male thallus | Globule | Roots |
In a moss, the sporophyte
1. Manufactures food for itself, as well as for the gametophyte
2. Arises from a spore produced from gametophyte
3. Is partially parasitic on the gametophyte
4. Produces gametes that give rise to the gametophyte
Read the following statements (A-E) and answer the question which follows them.
(A) In liverworts, mosses, and ferns gametophytes are free-living
(B) Gymnosperms and some ferns are heterosporous
(C) Sexual reproduction in Fucus, Volvox and Albugo is oogamous
(D) The sporophyte in liverworts is more elaborate than that in mosses
(E) Both, Pinus and Marchantia, are dioecious
How many of the above statements are correct?
1. Two | 2. Three |
3. Four | 4. One |
Examine the figure given below and select the right option giving all the four parts (A, B, C and D) correctly identified:
A | B | C | D | |
1. | Antheridiophore | Male thallus | Globule | Roots |
2. | Archegoniophore | Female thallus | Gemma cup | Rhizoids |
3. | Archegoniophore | Female thallus | Bud | Foot |
4. | Seta | Sporophyte | Protonema | Rhizoids |
Moss peat is used as a packing material for sending flowers and live plants to distant places because:
1. it is easily available
2. it is hygroscopic
3. it reduces transpiration
4. it serves as a disinfectant