ESSAY ON ENVIRONMENTAL POLLUTION INTRODUCTION Human activities directly affect the environment. Air and water are the two most important natural resources, whose pollution is frequently in the news in essay on environment pollution. The presence …
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HUMAN HEART IMAGES Introduction: The phenomenon of human heart beating includes following events: systole, diastole, pulse rate and cardiac cycle . Here are some common terms related to human heart beating: 1)Systole of normal human heart rate: It refers to the contraction of heart chambers 2)Diastole of normal human heart rate : It refers to the …
STUDY OF TISSUE INTRODUCTION: A tissue is a group of cells which have a common origin, similar shape, size and structure and perform the same function. Cells in a tissue are usually held together by a cementing substance and form a tissue system. ( what is tissue) Different types of tissues are : Tissue …
GENETIC DISORDERS PDF INTRODUCTION: (genetic disorder) .Determination of sex of an individual at pre-natal stage (before birth or during pregnancy) is called sex-determination. In a number of organisms, one specific part of a chromosome plays a significant role in the determination of sex of the organism. These chromosomes are named as sex-chromosome or allosome or …
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CORONA CASES IN INDIA INTRODUCTION During the world-wide lockdown condition due to Coronavirus infection, I am here to discuss about aspect of Corona. What is Coronavirus? It is a group of viruses that causes respiratory problems in animals and birds. Some viruses are not so dangerous, but due to biological reasons, some family members become …
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MONOHYBRID AND DIHYBRID CROSS INTRODUCTION: LIKE BEGETS LIKE, which means young one resemble their parents, (MONOHYBRID CROSS & DIHYBRID CROSS) is the well-known dogma associated with heredity. Each species has similarities among themselves due to the cause of heredity. W.Bateson was the first one to coin the term genetics in 1905. It is derived from …
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EYE IMAGE STRUCTURE OF EYE: IT’S WORKING AND PROBLEMS The eyeball is a spherical structure having 2.5 diameters. Structurally, the eyeball has three layers:- sclerotic layer (outer layer); choroid (middle layer) and retina (inner layer). PARTS OF THE HUMAN EYE Outermost layer contains sclera and cornea Middle layer contains choroid, ciliary body and iris. Innermost …
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BACTERIA IMAGES INTRODUCTION: Bacteria are the simplest ,most primitive and unicellular organisms without a true nucleus. That is why they are prokaryotic. they are placed under kingdom Monera. they are found everywhere in air,water,soil,food,inside our body etc. they lack nucleus and other cell organelles of complex cellslike plants,they possess a cell wall. each bacterial cell …
HUMAN EXCRETORY SYSTEM INTRODUCTION:- Various waste products are formed in our body as a result of manymetabolic activities taking place inside the body. These waste substances ifaccumulated would poison cells or slow down their metabolism. Hence, the body mustget rid of these unwanted substances.The metabolic wastes to be excreted includeCO2, H2O, fat, ammonia, urea and uric …
