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  মানুষ সৃষ্টির শ্রেষ্ঠ জীব কিন্তু আশ্চর্যজনক হলেও সত্য যে এই শ্রেষ্ঠ জীবনটিই প্রত্যক্ষ বা পরোক্ষভাবে উদ্ভিদের উপর নির্ভরশীল। আমাদের চারপাশের পরিবেশে দৃষ্টিপাত করলে দেখতে পাব যে, কতই না বিচিত্র আমাদের চারপাশের প্রানিকুল। মানুষের কথাই ভাবি, কেউ কেউ কটূক্তি করলে বা আঘাত করলে আমরা প্রতিশোধপরায়ণ হয়ে যাই কিন্তু গাছ? আপনার …

Healthy animals are colonized by microorganisms routinely. The Human Microbiome, for example, is restricted to five body sites, such as skin, oral cavity, pulmonary tract, gastrointestinal tract, and urogenital tract. Some animals are, however, colonized by sub­stantial populations of microorganisms at sites inside of the body wall, e.g. in the …

Let’s kick off this discussion with a simple calculation about the length of DNA in a single diploid human cell. We know according to Watson and Crick model of double helix DNA, each two base pairs has a distance of 3.4 A. There are approximately 6.4 billion base pairs (bp) …

Megasporangium is the structure of a plant body that contains a female reproductive organ. It can be called an ovule.  It consists of nucellus and integument. The ovule can be formed in different sizes and shapes. Many times it changes its form during the course of its development.   Mature …

Microsporangium: The sporangium that is connected with the production of microspores (pollen grains) eventually development of male gametophyte is known as microsporangium. Microsporangia are produced on stamen where each stamen has a bilobed anther (each lobe has two microsporangia), connective and anther filament. When anther produces four elongated microsporangia, the …

The acronym of PCD is Programmed Cell Death. The death of a cell in any form, mediated by an intracellular program is called programmed cell death. PCD is carried out in a biological process, which gives advantage during an organism’s life cycle. History The concept of PCD was used by …

Is really red Colored sea exist? Where it is? Yes, the Red sea exists and it is one of the wonders of nature. The color of the sea is actually an intense turquoise. It is situated in between Africa and Asia and is a salt intel of the Indian Ocean. …

“Dendrochonology”- a word derived from three ancient Greek words, which are: dendron,khronos and logia,stands for the science of calculating a tree’s age by it’s rings.The three Greek words :dendron,khronos and logia stands respectively for ‘tree’,’time’ and ‘the study of’. Short history of Dendrochronology: Greek botanist Theophrastus first mentioned that the …

It’s dark all around and you are walking by the sea with a sparkling blue wave touching your feet .isn’t it so much mesmeric ? As much The moment  is fascinating ,the reason behind this beautiful glow is much more overwhelming. This is a beautiful natural phenomenon caused by life …

  In the past when we heard the word “Gardening” the pictue that came to our mind is a vast area filled with rows of veggies & ornamented plants. But now this picture is different. As industrialisation is increasing day by day cities are expanding too. As a consequence amount …