Day: 25 June 2020

GYMNOSPERM NEB BIOLOGY Gymnosperm are the naked seeded plant i.e. seeds are not enclosed by definite covering. The plant body is sporophyte and is differentiated into roots, stem and leaves....

Flora diversity of Nepal Nepal contains a wide range of habitats with diverse floral species, due to its topographic and climate extremities. Collection of Nepali specimens was initiated in 1802...

NEB Biology Notes Definition and scope of biodiversity The richness and variety of living beings i.e. flora and fauna in any location is termed as biodiversity. It is short form...

Lamarckism Lamarck was the great biologist and taxonomist. He was the first scientist to put forward the theory of organic evolution, this theory was published in a book philosophic zoolgique....

Nostoc - NEB Biology Class 11 NEB Biology Class 11 Division : Thallophyta Class      : Cyanophyceae Order    : Nostocales Family   : NostocaceaeGenus   : Nostoc Nostoc is a colonial prokaryotic cynophycean or BGA , found in...

Origin of Life on Earth According to Nebular hypothesis about 10000 to 20000 millions of years ago . There was a huge mass of highly condensed cosmic material. It exploded...

Algae are chlorophyll bearing organism with a thalloid plant body and they are the simplest of all multicellular green plants. The branch of science which deals the study of algae...

Neo - Darwinism There have been modern changes in the theory of natural selection. These changes were made necessary by the discovery of Mendal’s law of heredity in 1900 and...

Darwinism NEB XI In 1859, Darwin published his book the origin of species:Darwinism can be described as follows : Over production of offspring According to Darwinism population tend to multiply...