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!
Ecosystem Control
Another important aspect of ecosystem functioning that is how it maintains its ecological balance. By now, it must be obvious to you that an ecosystem is a dynamic system, wherein a lot of events take place. For example, animals eat and in turn are eaten, moisture and nutrients flow in and out of the system, and weathers change. In spite of all these happenings the ecosystems persist and recover from the slight disturbances. This capacity of an ecosystem to self-regulate or self-maintain is called homeostasis. Isn't this ability of ecosystems to recover from certain perturbations remarkable? Let us take a simple example to see that how is this balance maintained in spite of the fight disturbances in the ecosystem.
Consider a grassland, when there is a drought, do not grow well. The mice that eat the grass become malnourished. When this happens, their birth rate decreases. And also the hungry mice retreat to their burrows and sleep. By doing so, they need less food and are less exposed to predators, so their death rates decrease. Their behaviour protects their own population balance as well as that of the grasses which are not being consumed while the mice hibernate. Such a mechanism is known as feedback regulation and is very important to maintain the ecological balance. It is the prime regulatory mechanism for the ecosystem as a whole. You may know that there are several kinds of organisms comprising an ecosystem. So all the organisms in an ecosystem are part of several different feedback loops. A feedback loop may be defined as relationship in which a change in some original rate, alters the rate of direction of further change. In the above example, we had deliberately taken a very small group of living beings that has primarily the mice and the plants.
At 1 AM, a healthy squid giant axon is placed in a bath of normal squid physiological extracellular saline and is internally perfused with normal squid intracellular saline. I
Explain which is better to grow plants in Rock sand or soil? Ans) When we grew plants inside, with no wind, and the plants in the rocks grew superior to the plants that were gr
TRANSPOR T THROUGH P.M. P.M. regulates transport of materials in and outside of cell P.M. is semi- permeable as it allows rapid passage to water molecules. P.M. is selectively
How vitamin e is directly related to Vitamins A, D and K? A high intake of vitamin E interferes with the functions of other fat-soluble vitamins such as vitamin K absorpt
Which of the following results from the elimination of DNA ligase activity in a cell? A. The oligonucleotide primers will not be removed from the genome - as they often contain
Pollen Stigma Interaction - Stigma The Stigma After landing on the stigma pollen grain germinates, and produces a pollen tube that carries the male gametes. The stigma has bee
Define Antiketogenic Effect of Carbohydrate? Presence of carbohydrates is necessary for normal fat metabolism. In the absence of sufficient carbohydrates, larger amounts of fat
Disability Adjusted Life Years (DALYs) DALYs is a measure for the overall ‘burden of disease’. Originally developed by the World Health Organization (WHO), it is being increas
Foscarnet (Foscavir) Foscarnet is an alternative to ganciclovir and valganciclovir for treatment of CMV infection. It is approved for use in CMV retinitis, including progress
Mollusks
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