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In an ancient lake bed at Southern Hemisphere scientists studying fossil leaves found out the mechanism of the plants living during the Miocene Epoch in which the world used to have an elevated level of carbon dioxide in the atmosphere. It gives a hope that with an increased rate of …

পরীক্ষার আগের রাতের পড়ার ট্রেন্ড আমরা অনেকেই এই কাজটার সাথে খুব পরিচিত। বিশেষ করে আমি এই পরীক্ষার আগের রাতে পড়ার সাথে শুধু পরিচিতই নয় বরং রীতিমতো অভ্যস্তও বটে। কিন্তু আজকে হঠাৎ করে মনে হলো নাহ্, বিষয়টা নিয়ে একটু আলোচনা প্রয়োজন তাই লিখতে বসা। তবে মূল কথা শুরু করার আগে জেনারেটর …

Conservation Global acceptance – that conservation of Biodiversity is essential; so, many countries and world organizations are active with definite agenda for conservation What is conservation? “Conservation is the management of human use of the biosphere to yield greatest sustainable benefit to current generations, while maintaining its potential to meet …

  Biodiversity loss and Conservation Life, growth & death are the most common phenomenons of any living organisms. Extinction is the ultimate fate of all species. Species leave population in large numbers and in many forms in this universe before getting extinct. In this way species diversity increases via environmental, …

Early and modern conceptual history of Biodiversity earth’s biodiversity – central theme in natural science. ‘Adam’ was asked not to eat fruit of a tree. Gr. Phil. Aristotle. (384- 322BC) recognized 500- 600 spp.-= modern folk classification. 19th century folk biology got redundant. 20th century our knowledge dominated by evolution. …

Biodiversity Literally, “bio” means “life” & “diversity” means “variety”, so it is ‘the study of variety & richness of life in biosphere’. In key respects all organisms alike- they consist of same kinds of substances, put together according to same laws that govern matter and energy, which they must obtain from …

Isotonic, Hypotonic and Hypertonic solution Case A In the cell, Concentration = .1mMol L-1 Ψp is negligible or 0 In the solution of the container, Concentration = .1mMol L-1 Ψp = 0 In both cases, Ψw = Ψπ + Ψp = -CRT (Ψp is 0 or negligible) Comment: There will …

This series includes the difference table between Habitat and Niche Autochthonous and Allochthonous Neuston and Pleuston Habitat Niche A habitat is an ecological or and evironmental area that is inhabitaed by a particular animal, plant or other types of organisms. A niche is a term describing the role and position …

ঔষধ হিসেবে গাছ গাছড়া কেনো? বর্তমানে আমরা আলোপ্যাথিক ঔষধের প্রতি ঝুঁকে পড়েছি। একটু কিছু হলেই প্যারাসিটামল, ডাক্তার, এক গাদা ঔষধ। একটু সুস্থ হয়ে সপ্তাহ যেতে না যেতেই আবার কিছু না কিছু সমস্যা, আবার ডাক্তার আবার আরো এক গাদা ঔষধ। এতেই শেষ না, ডাক্তার সাহেব বলেও দেন ঔষধটা খেয়ে দেখেন সুট …

What is embryo culture? Embryo culture is the sterile isolation and growth of an immature or mature embryo in vitro with the goal of obtaining a viable plant. Embryo rescue technique in overcoming barriers of distantly related crops: Distant hybridization: Hybridization between individuals from different species , belonging to the …