Essay on the Chemical Properties of Water (1279 Words)

Ecosystem
Here is your Essay on the Chemical Properties of Water !Water consists primarily of a single compound, H2O. It is a universal solvent and most chemical compounds ionize readily in water and provide many radicals and considerable versatility in the rearrangement of chemical substances. image source: marisakendall.com ADVERTISEMENTS: It has following chemical properties. Solubility of Gases in Water: Most gases dissolve readily in water, most notably those that are essential for life. The concentration of any gas in water gene­rally varies between zero and a theoretical maximum or saturation. The latter is the amount of gas that can be dissolved in water when the atmosphere and the water are in equilibrium with one another.Except for waterfalls and very turbulent streams, the water in natural ecosystem is seldom in equilibrium with…
Read More

Best Speech Ever Given on Ecology !

Ecology
Here is your Speech on Ecology !Conventionally, ecology has been defined variously by different classical and modern ecologists with different viewpoints. Quite oddly, no universally accepted definition of ecology has been for­mulated by any ecologist so far, and for the better understanding of scope, limitations, purpose, and mode of study of different ecological phenomena, one has to go through following chronologically arranged definitions of ecology:Ernst Haeckel (1866) defined ecology “as the body of knowledge concerning the economy of nature—the investigation of the total rela­tions of animal to its inorganic and organic environment. image source: upload.wikimedia.org ADVERTISEMENTS: An American plant ecologist, Frederick Clements (1916) considered eco­logy to be “the science of community.” British ecologist Charles Elton (1927) defined ecology as “the scientific natural history concerned with the sociology and economics of…
Read More

Essay on Literature concerning Ecology!

Ecology
Here is your essay on Literature concerning Ecology !The beginnings of ecological knowledge for modern man lay in the development of biology and medicine as scientific disciplines the fourth century Greek, Hippocrates (460-377? B.C.), often called ‘he “Father of Medicine”, emphasised certain ecological factors in the genesis of health and disease. image source: cgpauk.com ADVERTISEMENTS: His work, “On Airs, Waters and Places” was environmental in emphasis—'”whoever wishes to investi­gate medicine properly, should proceed thus: in the first place to consi­der the seasons of year, and what affects each of them produces……. Then the winds, the hot and cold … the qualities of waters, for as they differ from one another in taste and weight…………”Another Greek philosopher Aristotle (384-322 B.C.), some­times referred to as the “Father of Biology”, classified animals according…
Read More

Biological Significance of increasing Complexity and Organization in Living Beings | Essay

Environment
Essay on the Biological Significance of increasing Complexity and Organization in Living Beings !The trend of increasing complexity and organisation from lower level toward higher one produces following new properties: cooperation, division of labour and specialization. image source: anatomyandphysiologyi.com ADVERTISEMENTS: One property which arises at each new higher level of organi­sation is united, integrated function. Disunited structure means independent function and by extension, competition; while united structure means joint function and by extension, cooperation. For example, the cells can remain structurally independent and can compete for space and raw materials. But if they form a multi­cellular unit, they surrender their independence and become a co­operative, integrated system.The fundamental advantage of cooperation is operational efficiency: the cooperating whole is more efficient in performing the functions of life than its lower-level components…
Read More

Short Essay on Ecological Succession (743 Words)

Ecosystem
Here is your essay on Ecological Succession !As a lake fills with silt it changes gradually from a deep to a shallow lake or pond, then to a marsh, and beyond this, in some cases, to a dry-land forest. When a crop field is deserted or a forest is severely burned over, it is just like a plot of bare ground and a series of plant communities grow up there and replace one another— first annual weeds, then perennial weeds and grasses, then shrubs, and trees—until a forest ends the development. image source: fda7ed3288f75266dcf2-c3155e3c451bb708de9594bb4903715e.r46.cf2.rackcdn.com ADVERTISEMENTS: Likewise, if a landslide exposes a surface of rock in the mountains, the surface may be successively occupied by a sparse cover of lichens; a spreading moss mat; grasses, which enter and become a meadow;…
Read More

Essay for kids On Energy (500 Words)

Ecosystem
Here is your Essay for kids On Energy !Energy can be defined as the capacity to do work, whether that work be on a gross scale as raising mountains and moving air masses over continents, or on a small scale such as transmitting a nerve impulse from one cell to another. There are two kinds of energy, potential and kinetic. Potential energy is energy at rest. It is capable of and available for work. image source: lettherebeneon.com ADVERTISEMENTS: Kinetic energy is due to motion, and results in work. Work that results from the expenditure of energy can both store energy (as potential energy) and arrange or order matter without storing energy.The expenditure and storage of energy is described by two laws of thermodynamics. The first law of thermodynamics called law…
Read More

Essay on Adaptations and Ecotypes (712 Words)

Environment
Here is your Essay on Adaptations and Ecotypes !Organisms can respond to environmental stress in such a way that their tolerance zones may change. The genetic changes that occur during the evolution of the species because of mutation and natural selection are called adaptations. image source: margaretnoble.net ADVERTISEMENTS: Presumably, each species is fairly well adapted or fit, if it has been in its particular environ­ment for many generations. The range of tolerance of a species may be narrow (i e., species has a low ecological amplitude) or broad (i.e., species has a high ecological amplitude).Thus, orga­nisms are “slaves” to the physical environment; they adapt them­selves and modify the physical environment so as to reduce the limiting effect of temperature, light, water and other physical con­ditions of existence. Such factor compensation…
Read More

Essay For Kids on Pollutants

Ecosystem
Here is an Essay for kids on Pollutants !Every human society, be it rural, urban, industrial and most technologically advanced society, dispose of certain kinds of by-pro­ducts and waste products which when are injected into the bio­sphere in quantities so great that they affect the normal functioning of ecosystems and have an adverse effect on plants, animals, and man are collectively called pollutants (Smith, 1977). image source: post-gazette.com ADVERTISEMENTS: Certain common pollutants of well-developed and developing countries are following: 1. Deposited matter such as soot, smoke, tar, dust and grit. 2. Cases like sulphur dioxide, carbon monoxide, carbon di­oxide, nitrogen oxide, hydrogen sulphide, ammonia, fluorine, chlorine, etc. 3. Chemical compounds such as aldehydes, arsines, hydrogen fluorides, phosgenes, detergents, etc. 4. Metals like lead, iron, zinc, mercury, etc. 5 Economic poisons…
Read More

Short Essay on Ecological Efficiency (398 Words)

Ecology
Here is your Essay on Ecological Efficiency !The relationship between the amount of energy assimilated and the amount of energy utilized within one trophic level of a food chain has an important bearing on how much energy one trophic level in the food chain passes on to the next. image source:upload.wikimedia.org ADVERTISEMENTS: Efficiency is the ratio of useful output of energy in relation to input. There exist various methods of measuring different kinds of efficiencies, all of which require the understanding of the following para­meters; Ingestion describes the quantity of food or energy taken air by a consumer or the amount of light available or absorbed by a producer.Assimilation is the amount of food absorbed in the ali­mentary canal of a consumer, the absorption of extracellular pro­ducts by a decomposer,…
Read More

Short Essay on Marine Environment | Essay

Ecosystem
Essay on the Physico-Chemical Characteristics of Marine Environment !The marine environment of seas and oceans is large, occupy­ing 70 per cent of the earth’s surface. The volume of surface area of marine environment lighted by the sun is small in comparison to the total volume of water involved. This and the dilute solution of nutrients limit production. It is deep, in places nearly more than 6 kilometers. image source: unesco.org ADVERTISEMENTS: All the seas are interconnected by currents, domi­nated by waves, influenced by tides and characterized by saline waters. Not only the seashore and banks which are the homes of many organisms but the open ocean, many hundreds of kilometers away from land, supports plant and animal communities of great diversity and complexity. Physico-Chemical Aspects of Marine Environment: In the…
Read More