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.
Osmosis and transpiration both play a part in the movement of water through a plant. Which of these two processes makes the greater contribution to the movement of water up the t
Q. What is the difference between type II diabetes mellitus and type I diabetes mellitus? Type I diabetes also known as insulin-dependent diabetes (as this name is not adequate
If a diploid sperm fertilized a haploid egg, what would the result be? a.Haploid (n) b.Diploid (2n) c.A mixture of diploid (2n) and haploid (n) d.Triploid (3n)
Alluvial Materials of this catego~ya re deposited by running water in the form offroodplains, river terraces, deltas and alluvial fans. These deposits have two outstanding char
Question 1) Mentioning the 3 different processes in the formation of urine Explanation of Glomerular filtration Explanation of Tubular reabsorption Explanation of T
Which of the following contributes to the degeneracy of the genetic code? A. The presence of 64 codons but only 20 amino acids. B. The ability of a single tRNA to bind to ma
Advantages and Disadvantage of using Turbidity Measurement? Advantages 1. It is an easy, rapid and sensitive technique. 2. Turbidity measurement can be done without destr
BLOO D CORPUSCLES (= BLOOD CELLS) - Blood corpuscles are of the following three types: Erythrocytes, Leucocytes and Thrombocytes. (A ) Erythrocytes (Red Blood Corpusc
Impoundments - Lentic Ecosystems We have so far discussed natural lakes. In addition to these there are a number of lakes both small and large artificially created by man cal
Relate Mitochondria organelles with eukaryotic cells Mitochondria are highly specialised organelles in eukaryotic cells. These perform the energy transducing process, and are o
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