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Latitudinal Variations
The latitudinal variation of temperature over the earth is the result of two main variables
What do you think could be the other factors influencing temperature?The movement of wind and water, and the direction of slopes of hills and mountains also modify the temperature.We know that the length of the day varies at higher latitudes. That means the incoming solar radiation varies. However, if we compute the average, every point on the earth gets the same total hours of daylight each year, an average of 12 hours per day, but not the same amount of heat. The latter depends upbn the amount of radiant energy delivered/unit area/hr and this depends upon the angle of landing sunlight. You have learnt in the previous section that vertical beams afe more intense than the oblique beams that land on the higher latitudes. Hence we find a gradual decrease in the amount of incident radiant energytunit area along the increasing latitudes, horizontally. On the basis of temperature variation three distinct heat zones can be distinguished in each hemisphere (Figure shown below). The hot torrid zones are near the equator. moderate or temperate zones are in the middle, the cold zones are at the poles. Each zone is characterised by typical plants and animal populations found in the area.
All of the electron carrier in the electron transport chain interact according to their redox potentials. Every time whereas an electron transfers occurs, the accepting carrier ha
Protozoans - Body Form The protozoan body is usually bound only by the cell membrane called plasmalemma. In some protozoans such as in ciliates the rigidity and the flexibili
tell me the general characters of monopisthocotylea
Substrates are reagent molecules upon which enzymes act. The enzyme has spatial binding sites for the attachment of its substrate. These sites are known as activation centers of
FEMALE REPRODUCTIVE SYSTEM - In female mammals the female reproductive system characteristically comprises of the ovary, uterus, placenta, vagina and vulva.
MUTATION THEORY (Hugo de Vries 1901) - New species are not formed by continuous variations but sudden appearance of variations i.e., mutation. Mutation are heritable and per
Immediate Post-operative Care The patient is accompanied to the ICU by a surgeon, anesthetist and the nurse who assisted for the surgery with portable ventilator and ECG
Q. How has the importance of the brain evolved from fishes to reptiles? From the least to the most complex brain structure, it is evident that the brain, from fishes to beings
What are sarcomeres? Sarcomeres are the contractile units of the muscle tissue formed of alternating actin blocks (thin filaments) and myosin blocks (thick filaments). Various
What are the uses of microorganisms
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