The protonema stage of a moss develops directly from:
The protonema stage is a creeping, green, branched, and frequently filamentous stage that develops directly from a spore.
Question 72 of 100
📘 CLASS XI
In mosses, vegetative reproduction in the secondary protonema occurs by:
Vegetative reproduction in mosses takes place by fragmentation and budding in the secondary protonema.
Question 73 of 100
📘 CLASS XI
Funaria, Polytrichum, and Sphagnum are common examples of:
Common examples of mosses include Funaria, Polytrichum, and Sphagnum.
Question 74 of 100
📘 CLASS XI
Pteridophytes are frequently grown as ornamentals and are heavily utilized for:
Pteridophytes are used for medicinal purposes and as soil-binders, and they are also frequently grown as ornamentals.
Question 75 of 100
📘 CLASS XI
In pteridophytes, small leaves (microphylls) are found in genera such as:
The leaves in pteridophyta can be small (microphylls) as seen in Selaginella or large (macrophylls) as in ferns.
Question 76 of 100
📘 CLASS XI
The spread of living pteridophytes is limited and restricted to narrow geographical regions primarily because:
The gametophytes of pteridophytes require cool, damp, shady places to grow, and because of this restricted requirement and the need for water for fertilisation, their spread is limited to narrow geographical regions.
Question 77 of 100
📘 CLASS XI
The majority of pteridophytes produce all spores of a similar kind, a condition known as:
In a majority of the pteridophytes, all the spores are of similar kinds, and such plants are called homosporous.
Question 78 of 100
📘 CLASS XI
The classes of pteridophytes include Psilopsida, Lycopsida, Sphenopsida, and:
The pteridophytes are further classified into four classes: Psilopsida, Lycopsida, Sphenopsida, and Pteropsida.
Question 79 of 100
📘 CLASS XI
The term "Gymnosperm" refers to plants in which:
Gymnosperms (gymnos : naked, sperma : seeds) are plants in which the ovules are not enclosed by any ovary wall and remain exposed, both before and after fertilisation.
Question 80 of 100
📘 CLASS XI
Mycorrhiza, a fungal association with roots, is predominantly observed in the gymnosperm genus:
In gymnosperms, roots in some genera have fungal association in the form of mycorrhiza, specifically in Pinus.
