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Showing posts with the label types of biological rhythm

DEFORESTATION IN INDIA

  CONSEQUENCES & OUTCOMES OF DEFORESTATION IN INDIA Deforestation is the widespread destruction of major forests in India, which causes environmental degradation, biodiversity loss, climate change impacts, and livelihood threats for many people. CAUSES OF DEFORESTATION  IN INDIA: Conversion of forest land for agriculture, urbanization, industrialization, infrastructure development, etc.  Pollution of forest water and soil due to domestic sewage, industrial effluents, agricultural runoff, solid waste dumping, etc.   Overexploitation of forest resources such as timber, firewood, fodder, non-timber forest products, etc.  Invasion of exotic species that compete with native species and alter the forest ecology.  Forest fires that destroy large areas of vegetation and wildlife. SOME OF THE EFFECTS OF DEFORESTATION IN INDIA: Soil erosion and land degradation that reduce the fertility and productivity of land.  Loss of habitat and species divers...

BIOLOGICAL RHYTHM

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  A behavior that occur in any organism after specific interval of time is known as Biological rhythm. eg; Wake and sleep cycle, Migration, Hibernation etc.   Biological clock   is self maintained physiological clock which regulate both external behavior and endogenous activity. It is an innate clock in our body which is so useful for biological rhythm. Types of Biological Rhythm: Circadian Rhythm: These are the rhythm with a period of 24hours(about a day). eg;   Sleep and wake cycle, Migration of organism to the top of sea at night. Types of  Circadian Rhythm Diurnal Rhythm: Organisms are active at day time. eg; Human, be. Nocturnal Rhythm: Organisms are active at night. eg; Bat, Owl. Crepuscular Rhythm: Organisms are active during dawn and dusk hours. eg; Rats. Vespertine Rhythm: Organisms are active at evening. eg; Mosquito. Arhythmic: No regular daily pattern of organisms.   2. Circannual Rhythm: It occurs over a period of approximately an ann...