Natural and artificial ecosystem, Biology

Assignment Help:

Natural and Artificial Ecosystem

i) Natural ecosystems are those which are mostly free from human disturbances, such as tropical forests, grasslands, oceans, lakes and deserts.

ii) Artificial or man-modified ecosystems are formed as a result of human modification of the natural ecosystems. For example, man has transformed natural forests and grasslands into crop fields. An extreme example of an artificial ecosystem is a city. Increasing human interference has destroyed many natural ecosystems and replaced them with artificial ecosystems,'such as crop fields, urban centres and industrial estates.

All ecosystems are fully integrated with the neighbouring ecosystems and communicate with each other in varying degrees through the import and export of both energy and nutrients. An ecosystem is a dynamic system characterised by energy flow and nutrients cycling. Substances constantly flow through it, and there are sufftcient supplies of energy within the ecosystem to allow for this flow to take place. See Figure as shown below. Ecosystems also possess considerable self-regulating ability, called homeostasis. due to which they tend to recover from minor perturbations.

1376_natutal & artificial eco.jpg


Related Discussions:- Natural and artificial ecosystem

Light - marine ecosystems, Light - Marine Ecosystems Light is a limiti...

Light - Marine Ecosystems Light is a limiting factor in the ocean as it contributes significantly to organic production and distribution of marine life. The ocean is divisible

Relation between coronary artery and myocardial supply, Q. Can you explain ...

Q. Can you explain Relation between Coronary Artery and Myocardial supply? Ans. There is a well-established relation between a given epicardial coronary artery and its myo

Vitamins necessity, Vitamins necessity Vitamins are essential organi...

Vitamins necessity Vitamins are essential organic substances. They are micro nutrients and required in small quantities. They do not produce any energy by themselves.

Structure into which follicle is transformed after ovulation, Q. What is th...

Q. What is the structure into which the follicle is transformed after ovulation? What is the importance of that structure in the menstrual cycle? The follicle that released the

What are some antibiotics used against fungi, Q. What are some antibiotics ...

Q. What are some antibiotics used against fungi? The systemic or topical azoles (like fluconazole, itraconazole and others), amphotericin B, the echinocandins (caspofungin, mic

.general methods for studying microbial physiology, what are the general me...

what are the general methods for studying microbial physiology

ECOLOGICAL PYRAMIDS, Ask questionLIMITATION OF ECOLOGICAL PYRAMIDS #Minimu...

Ask questionLIMITATION OF ECOLOGICAL PYRAMIDS #Minimum 100 words accepted#

Amoeboid tapetum - tapetum, Amoeboid Tapetum - Tapetum It is also know...

Amoeboid Tapetum - Tapetum It is also known as invasive or periplus modial tapetum. This type of tapetum is more prevalent in the monocotyledons (Arum) than in the dicotyledon

Importance of care in children, Importance of care in children Childre...

Importance of care in children Children  are not  just  small adults. This is important  to keep  in mind when evaluating how children react to illness, perceive an illness, o

Protozoa, advantages and disadvantages of protozoa

advantages and disadvantages of protozoa

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

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!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd