HORTICULTURE

Detailed explanation-1: -Amongst plants, the highest species diversity is shown by angiosperms (flowering plants), followed by algae, mosses (bryophytes) and ferns (pteridophytes).

Detailed explanation-2: -In terms of numbers of species, insects certainly represent the largest percentage of the world’s organisms. There are more than 1 million species of insects that have been documented and studied by scientists.

Detailed explanation-3: -One reason for this diversity is the close relationship they have with one another. Over many years, some flowers and pollinators have influenced each other’s evolution. Today, when flower-pollinator pairs have traits that work very well together, it’s a sign this kind of evolution may have happened.

Detailed explanation-4: -Conservative estimates indicate that there are in excess of 220 000 known living species of flowering plant, which is much more than all other land plants combined. Despite the ecological supremacy of this group and the huge diversity of living forms, in geological terms the angiosperms are comparative newcomers.

Detailed explanation-5: -Angiosperm diversity is divided into two main groups, monocot and dicots, based primarily on the number of cotyledons they possess.