problems on significant figures related to biology

Competition is extremely important in determining the distribution of closely related species. essential in determining habitat range and speciation..

can be Pollution due to use of aerosols due to high density of population due to waste disposal system Out of them, major contribution of air pollutants is from industrial pollution and transport related pollution - because industrial activity and transport are continuously op..

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 absence of ..

Set up the experiment as shown in the figure..

>The homeostatic mechanisms work on a negative feedback. In order to ensure the continuation of species, all living organisms exhibit reproduction. The entire cellular information is stored in the DNA which undergoes replication to transfer the information to the successive generations. The surviva..

fig. 14.2 - Starch Grains from Different Sources Based on their functional significance, polysaccharides can be distinguished under two categories namely storage polysaccharides (e.g., starch and glycogen) and Structural polysaccharides (e.g., cellulose, lignin and chitin). The following ..

1) Entire scanning takes only seconds. 2) It is a painless procedure. 3) X-ray dose equal to or less than many other procedures. 4) Much more detailed informations than radiography. 5) Three dimensional view of the organ emerges. 6) Even small defects can be pin pointed...

Significance of Variations - Variations provide the species a way to survive and adapt to the changing environmental conditions. Since there are variations, nature can choose the best suited individual and allow the species to multiply further. Thus, natural selection is possible only bec..

Significance of Senescence - i) Old and inefficient organs are replaced by young and developing organs. ii) Leaf fall in deciduous trees reduces the rate of transpirational loss. This is an adaptation to tide over winter. iii) Recovery of nutrients from senescing organs by diverting the n..

Meiosis becomes significant for the following reasons. It brings about a reduction in the chromosome number from a diploid (2n) condition to a haploid (n) condition. Such a reduction becomes necessary for maintaining the chromosome number. It provides chance for the appearance of new gene..