Hearing is the second most important channel, next only to vision, through which we learn about and appreciate the world around us. Through hearing, we understand speech, our chief medium for imparting and acquiring knowledge.
Moss plant completes its life cycle passing through haploid gametophyte and diploid sporophyte. Moss plant is a gametophyte. It consists of a unbrnched ort branched shoot with spirally arranged small green leaves. At the base of shoot, numerous multicellular rhizoids are developed.
No living organism in this world can live by itself. In any habitat one organism is dependent upon the other for its welfare. Even man influences, and is influenced by, other organisms. Animals and plants depend on one another.
The plants are grouped into two major categories based on their ability to prepare or obtain food. Autotrophic plants include green plants which can prepare their own food and can live independently. From inorganic raw materials, like carbon dioxide and water they can photosynthesize with the help of chlorophyll pigments in the presence of sunlight.