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The main objectives of study of ecology are:
(i) To study the distribution of biota local and geographical level.
(ii) To study the interrelationship of organism in population and in diverse communities.
(iii) To study development of organisms during the course of evolution.
(iv) To study structural and functional adaptation of organisms with their environment.
(v) To study energy flow and biological productivity in natural ecosystem.
(vi) The most important objective is to apply knowledge gained from ecological study to safe guard against disasters caused by human activities like deforestation, environment pollution, population explosion etc.
Q. How are animals classified according to the germ layers present in their embryonic development? Cnidarians are diploblastic, that is they present only ectoderm and endoderm.
Three ways in which food might become contaminated by harmful bacteria. Food may become contaminated:- (i) from the unwashed hands of a food-handler, (ii) by house- flies
Types of Biogeochemical Cycles There are two basic types of biogeochemical cycles, gaseous and sedimentary. In the gaseous type of biogeochemical cycle there is a prominent ga
Explain Protein Deficiencies in Nutritional Care? A depleted amino acid pool leads to poor wound healing (dehiscence), delayed healing of fractures, anaemia, depressed pulmonar
Q. Mechanical means of instrument cleaning? Using mechanical means of instrument cleaning rather than hand scrubbing should minimize handling of instruments. If procedures are
A renewable exhaustible natural resource is: 1. Coal 2. Petroleum 3. Minerals 4. Forest Forest is a renewable exhaustible natural resource
In a plasma membrane, which of the below provides a general barrier to the movement of molecules? a) Lipids b) Proteins c) Carbohydrates d) all of these Answer: a
a) How do viruses enter plant body and spread to long distances within it? b) Mention any two ways by which viruses spread from single plant to another.
Define effect of Caffeine on athletes? Caffeine is found in coffee, tea, colas and chocolates. Its doses at 3- 6 mg/d have been known to increase muscle contractility and aerob
Explain Indications for Surgery of Congenital Pulmonary Stenosis ? Interventional treatment is required for all neonates presenting with critical pulmonary valvar stenosis. Thi
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