Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Biosphere
Biosphere is that part of the earth where life can exist. It is a narfqy layer around the surface of the earth. If you visualise the earth to be the size of an apple the biosphere would be as thick as its skin. The biosphere extends from the floor of the ocean some 11,000 metres below the surface of the earth to the top of the highest mountains, or about 9,000 metres above the sea level. Its most densely populated region is just above and below the sea level.Biosphere represents a highly integrated and interacting zone comprising of atmosphere (air), hydrosphere (water) and lithosphere (land) as you can see in Figure shown below.
Life inthe biosphere is abundant between 200 metres (660 feet) below the surface of the ocean and about 6,000 metres (20,000 feet) above sea level.
Biosphere is absent at extremes of the North and South poles, the highest mountains and the deepest oceans, since existing conditions there do not support life. Occasionally spores of fungi and bacteria do occur at great height beyond 9,000 metres, but they are not metabolically active, and hence represent only dormant life.The energy required for the life within the biosphere comes from the sun. The nutrients necessaj for living organisms come from air, water and soil and not from outside. The same chemicals are recycled over and over again for life to continue. Living organisms are not uniformly distributed throughout the biosphere. Only a few organisms live in the polar regions, while the tropical rain forests have an exceedingly rich diversity of plants and animals.
Q. Explain H - Shaped Incision? This type of incision is especially useful for: The anterior maxilla or mandible. Accurately identified implant position. Exposure o
Ask question #i need the complete table having the names of the diseases their causative agents and their control,caused by air-borne pathogens?
BIOLOGICAL PROPERTIES OF PROTOPLASM - 1 . Respiration - Oxidation of food to liberate energy is respiration. Every living beings respire but every living beings do no
FAT METABOLISM Animals digest and utilize three main types of fatty compounds or lipids neutral or true fats ( triglycerides ), phospholipids and sterols. Endproducts
Q. How does the embryo turn from gastrula into neurula? How is the neural tube formed? What is the embryonic origin of the nervous system in vertebrates? The neurula stage is c
Vibriosis/campylobacteriosis This is genital disease of cattle and sheep. The causal organism Campylobacter fetus is a gram negative, curved or spiral shaped bacteria having s
what are the component of hemoglobin
What problem would most likely to occur if a haploid cell attempted to perform meiosis?
Use of Beta-blockers : In some centres, patients are routinely put on beta-blockers after CABG. European coronary artery surgery study showed that only 25 per cent of patient
A dihybrid cross yields 320 F2 offspring. How many are expected to resemble the homozygous recessive parental?
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd