NEET BIOLOGY

Detailed explanation-1: -Mosses reproduce by branching and fragmentation, by regeneration from tiny pieces of photosynthetic tissues, and by the production of spores. The spore, under favourable conditions, germinates and grows into a branching green thread, the protonema.

Detailed explanation-2: -Moss spores are produced from the sporophyte. The sporophyte contains three structures including a foot to attach it to a gametophyte where water and nutrients are stored, a seta which is the long stalk, and a capsule shaped like a pod that produces spores.

Detailed explanation-3: -The sporangium is the main body of the sporophyte and is the organ in which the spores are produced. As previously mentioned, most mosses will have a sporangium with these anatomical features: A sporogenous layer, a columella, peristome teeth, and an operculum.

Detailed explanation-4: -Moss spores are small single celled packages that play a crucial role in establishing new populations. These tiny units are blown by the wind and then landing somewhere suitable, grow into a new moss plant. They enable mosses to spread far and wide across the globe.