ATOMIC STRUCTURE PDF INTRODUCTION: (BASIC ATOMIC STRUCTURE) All matters are in nature is made up of only a few elements. The elements exist as atoms and/or molecules. Molecules of an atom are made up of atoms of the same type. Compounds contain two or more elements. Thus, the molecules of compounds contain atoms of different …
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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WHAT IS HEAT INTRODUCTION: Heat is a form of energy in transit, which excites us in the sensation of warmth. It is a form of enegy which floes from a body at …
TIME AND WORK INTRODUCTION:- Two quantities are said to vary inversely of the increase or decrease in one quantity causes the decrease or increase in the other quantity. For example: The number of men doing work is inversely proportional to the time taken to finish …
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 …
NERVOUS SYSTEM IMAGES INTRODUCTION: We perform many activities consciously or unconsciously, for example, when we eat food, our eyes help to locate the food, the nose smells it, hands bring food to the mouth, teeth chew and masticate it, the tongue pushes the food inside the alimentary canal, and so on. (NERVOUS SYSTEM FUNCTION) All …
FERTILIZATION IN PLANTS Definition Fusion between male gamete and female gamete of plant is called fertilization. Events of fertilization A] Pollination brings female and male gametophyte together- The male and female gametophytes must meet and unite their gametes to fertilize egg. This is done by pollination, in which pollen is placed on the stigma of …
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