Category: Diet & Nutrition

24 Questions with Answers and Explanations on “Ecosystem” for Biology Students: Image Source: sitemaker.umich.eduQ. 1. Mention any two examples of manmade ecosystem. Ans. (1) Crop fields ADVERTISEMENTS: (2) AquariumQ. 2. Mention the basic requirement for any ecosystem to function and sustain. Ans. Solar energy. ADVERTISEMENTS: Q. 3. Name the types of productivity and the organism responsible?Ans. Primary productivity— plants.Secondary productivity —consumers.Q. 4. Mention the raw material of decomposition. ADVERTISEMENTS: Ans. Detritus.Q. 5. Select the odd one out: (a) Fecal matter,(b) Dead leaves, (c) Thermocol, (d) Bark. Ans. (c) ThermocolQ. 6. Give an example to detritivore. Ans. Earthworm.Q. 7. Expand the term PAR. Ans. Photosynthetically Active Radiation.Q. 8. How much percentage of PAR is captured by the producers to produce food for entire world? Ans. 2%—10%Q. 9. Name the herbivores of…

Here is your essay on Biotic Community !All the living entities of an ecosystem form a single biotic component, the community. All the organisms of a community live together, share same habitat and influence each other’s life directly or indirectly.Various vital life processes such as growth, nutrition, reproduction and distribution depend very much upon the interac­tions between the individuals of same species (intra specific interac­tions), or between those of different species (inter specific interact­ions). Pollination, seed and fruit dispersal, symbiosis, grazing, predation, parasitism, competition are some of such interactions. image source: upload.wikimedia.org ADVERTISEMENTS: Community ecology deals with the ecology of the groups of different kinds of populations in the area. While, population eco­logy is the study of individuals of the same species where proces­ses as aggregation, inter-dependencies between individuals and…

Here is your Essay on Growth of Plant Ecology in India !In India, the earliest contributions to the modern plant ecology were mainly from some forest officers who presented purely descriptive accounts of forests. First forest conservation efforts were made in 1864 by Sir Dietrich Brandis, the Inspector General of forests and first Indian Forest Act came into existence in 1885. image source: c1.staticflickr.com ADVERTISEMENTS: In 1893, Voelcker, a German agricultural scientist, submitted a report to Indian Government regarding the role of forests vis-a-vis agriculture and he stressed the need for formulating a forest policy with a definite bias for serving agricultural interests more directly than before.Accordingly, Indian Government issued a resolution dated 19th October, 1894 regarding her policy about the manage­ment of Indian forests on scientific lines (Sagreiya, 1967).Early…

Free Essay on the Population Policy of India (679 Words)Population dynamics is a important matter and it crucially affects the developmental prospects of nation as well as the health and well-being of its people. This is particularly true of developing countries which have to face special challenge in this regard. It is hardly surprising therefore that India has had an official population policy for more than a half century. In fact, India was perhaps the first country to explicitly announce such policy in 1952. Image Source: veganfestival.co.uk ADVERTISEMENTS: The population policy took the concrete form of the National family planning programme. The broad objectives of this programme have remained the same to try to influence the rate and pattern of population growth in socially desirable directions.The most important objective was…

Essay on the Classification types and Function Placenta! Image Source: humpath.comPlacenta is an organic connection between the foetus and uterine wall, for physiological exchange between foetus and mother’s blood. The placenta develops at the point of implantation. At first, the trophoblast cells absorb food and oxygen from the increasingly vascularised uterine lining. ADVERTISEMENTS: The allantois grows out from the embryo and fuses with the chorion to form the allanto – chorion which will develop into the placenta. The allantois gives rise to the umbilical cord which contains blood vessels connecting foetus and placenta. 1. Classification of Placenta: Three main factors involved in the classification of mammalian placenta are –1. Nature of extraembryonic membranes involved.2. Distribution of vill (finger like projection, formed from the outer surface of chorion) and shape of…