BiologyWhat is Plant Nutrition? Green plants manufacture carbohydrate foods by the process of Photosynthesis. These foods again break down to water, CO2 and energy. That energy is used in…
BiologyDicotyledonous or Dicot Plants Dicot plants bear two cotyledons in their seeds. The root system. is Tap Root System; leaves are with reticulate venation, flowers are Tetramerous or Pentamerous.…
BiologyMonocotyledonous or Monocot Plants Monocot plants bear one cotyledon in their seeds. Their roots are fibrous, leaves have parallel venation; flo:vers are trimerous (each floral parts being 3 in…
BiologyGymnosperm Gymnosperms produce flowers and seeds but do not bear any fruit. Once they were well spread around the world but at present their, the number…
BiologyPteridophyta Pteridophyta is the first vascular plant (which Possesses vascular tissues). The number of species of pteridophyte is about 10,000 species. As a representative of Pteridophyta,…
BiologyBryophyta There are about 23,000 species of Bryophyta in the world, of which Mosses constitute a major portion of this group. Mosses grow abundantly in Bangladesh.…
BiologyPrinciple of Plant Classification The main principle of classification is to arrange all plants of a similar character (one type of character), in a group. Previously the entire living…
BiologyUnit of Classification in Taxa There are certain steps for the classification of the plant kingdom. These steps are called Taxa and are singular Taxon. A taxon is a group…
BiologyPurpose of Plant Classification The Creator created the world with various types of diversified plants. There are such small plants, which cannot be seen with the naked eyes, again…
BiologyExplain Characteristics of Phylum Ascomycota Characteristics of Phylum Ascomycota: i) They are mainly saprophytes but few species are also parasites. ii) Their vegetative body is unicellular mainly composed of mycelium…