Biology Concepts and Articles

We at provides all data about biology at one easy place in and understandable English. It will help researchers and students. Please share your questions in comments section below each article.

Sphenopsidaf – Occurrence & Structure

SPHENOPSIDAF TYPE  EQUISETUNI Occurrence The genus Equisetum has 25 species. It is world wide in distribution. They are most common in temperate regions. It generally grows in moist places. General structure The plant body is sporophyte. It is composed of rhizome, aerial branches, scale


CLASSIFICATION IN BIRDS Class Aves Adaptation for flight include: forelimbs are modified as feathered wings, endothermic, high metabolic rate, flexible neck, fused posterior vertebrae, and bones lightened by numerous air spaces. The skull is lightened by a reduction in bone. Presence of a horny

Birds feather flight & endothermy

THE BIRDS FEATHER FLIGHT & ENDOTHERMY EVOLUTIONARY PROSPECTIVE PHYLOGENETIC RELATIONSHIPS Birds are traditionally classified as class Aves. Birds have adaptations for flight. The major characteristics of this class are: 1. Their appendages are modified to wings. 2.  They body is covered by leathers. 3.


LYCOPSIDA TYPE SELAGINELLA Occurrence Selaginella is a tropical plant. It has world wide distribution. It grows in damp forests. Some species occur in temperate regions. They grow in moist shady places. General structure The plant body is sporophyte. The body is divided into root,

PSILOPSIDA in botony for plants

PSILOPSIDA TYPE PSILOTUM Occurrence Psilotum is distributed in tropical and subtropical regions. It may grow as an epiphyte on the bark of trees. It also grows on soil where humus is abundantly available. General structure The plant body is sporophyte. The plant is a