function introduction

Introduction - A tissue is an aggregation of cells that have a common origin and structure, and perform similar functions. Tissues are meant for meeting the physical and physiological needs of the plant body. An angiosperm plant body shows two major types of tissues namely, Meri..

Carboxylic Acids and its Derivatives - Introduction - Carbon compounds containing a carboxyl functional group -COOH are called carboxylic acids. A carboxyl group is constituted of two groups - a carbonyl group and a hydroxyl group -OH. Carboxylic acids may be aliphatic (R-COOH) ..

Introduction - As the complexity of the individuals, plants or animals increases the different cells and organs become separated from each other by greater distance. Thus it becomes necessary to have a system by which the different parts of the organisms can function as a single..

Introduction - Materials formed in one part of the body have to be taken up to other parts where they are needed or to be got rid of. This is an essential requirement of most animals. This function is performed by the body fluids. The movement of the body fluids i.e. blood and l..

Introduction - The important characteristic of the gene is to store and express the genetic information that will contribute towards the phenotype, and will be passed on to successive generation. The idea that genes control the metabolism was put forward as early as 1902 by Gannod. He stu..

Introduction - The study of world of life is as old as man itself. All living organisms are made up of a few elements which are repeated in each of them. The basic unit of life - cell, is a structural and functional entity of life. Of all the environmental factors that affect pl..

Introduction - During the course of study of Mathematics, we must have come across several parts of inverse operations like (addition, subtraction) (multiplication, division) (forming an equation whose roots are given - solving a given equation) and so on. In practical situations, we may ..

Amines may be regarded as the alkyl or aryl derivatives of ammonia. They are obtained by the replacements of one or more hydrogen atoms of ammonia by alkyl or aryl groups. They can be classified into primary, secondary or tertiary amines depending upon whether two or three H atoms of ammonia have b..

Introduction - The plants upon which we depend for the food we eat, and for the oxygen we breathe, depend in turn upon the soil. A good soil supplies the plants with the mineral elements they use. Vigorous, highly productive plants can be grown in solutions of fertilizer minerals in the a..

>Fossils also show evidences of evolutionary relationships. Their study provide knowledge about the extinct forms, and also provide links between two groups of species Organisms have emerged due to evolution by stages and adaptations for new functions. Intermediate stages can be traced by..