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!
Availability of Nutrients:
The nutrients in the upper layers of water are constantly being taken up by the phytoplankton, who are the producers, and then these pass on to the herbivores, and the carnivores. When these latter organisms die, they are either eaten up by other animals or they get decayed by the decomposers. Some of the decomposed matter sinks to the ocean floor.
It means, the nutrients taken up by the producers from the upper layers of sea water are constantly being drained to the lower layers of sea water. Do you know what would happen if the nutrients in the upper layers of water are not replenished? There would be no phytoplankton and photosynthesis; no production of food to sustain other animal life. Hence all the organisms would die.
Actually, in nature such a situation does not arise. Let us see how a constant supply of nutrients in the upper layers of water is ensured. There are two ways:
(i) As riversend in the seas, they bring along a lot of refuse and nutrients from the land to the water.
(ii) 'Upwelling' takes place, which is a process by which dwp, nutrient rich waters are brought to the surface. What actually happens is that wind blows surface water on to the shores. The watex which now comes to the surface is from below. It is cold and high in nutrient content. Regions where upwelling takes place are very productive. That's why important commercial fishexies in the world are situated in such regions.
lmmunoglobulin G - classification of antibodies Major defence against bacteria and their toxins. It is the major Ig - 80% in the body, can cross the capillary wall very easily
classification of animals
Moving water by reducing air pressure Secure two small bottles. Fill single about half full of water and close it with a single-hole stopper carrying a length of glass tube tha
what is cell
Explain Sinus Tachycardia - Electrocardiogram When the only abnormality is that the heart rate at rest is more than 100 per minute, the condition is known as sinus tachycardia.
Resource Energy: The demand for energy doubles every 14 years and is taken as one of the indicators of development of a country. India, with 16% of the world's population c
What is the common name for the test that provides the hardness of the material by the size of an indent left in it by a standard steel ball? The Brinell Test
What is tocopherols Vitamin E refers to a group of compounds known as which are the derivatives of a parent compound called as 'tocol'. Four tocopherols namely a, P,
During which equinoxes are day and night of equal length around the world: Autumnal And Vernal Equinoxes
what is law of motions
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: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd