Question
What are the types of ecosystems? Give their suitable examples.

Answer

Ecosystems are of two types, viz. natural ecosystem and artificial ecosystem.
(1) Natural ecosystems : The ecosystems which operate under natural conditions without any much major interference by man are called natural ecosystems. E.g. terrestrial ecosystems such as grasslands, forests, deserts, etc. or aquatic ecosystems such as lakes, river, wetland, etc.

(2) Artificial ecosystems : The man engineered ecosystems which are maintained artificially by man by the addition of energy are called artificial ecosystems. These ecosystems are dependent upon manipulations from human beings. E.g. croplands, aquarium, aquaculture, etc. are the types of artificial ecosystems.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Draw a schematic diagram of the E.coli vector PBR 322 and mark the following in it:
  1. Ori
  2. Rop
  3. Ampicillin-resistant gene
  4. Tetracycline-resistant gene
  5. Restriction site BamHI
  6. Restriction site EcoRI
Answer the following questions:
How does cleistogamy ensure autogamy?
  1. Tobacco plants are damaged severely when infested with Meloidegyne incognitia. Name and explain the strategy that is adopted to stop this infestation.
  2. Name the vector used for introducing the nematode specifie gene in tobacco plant.
What is the significance of reflex action?
If a marine fish is placed in a fresh water aquarium, will it be able to survive? Give reason.
Some microbes act as very good biofertilisers. Explain with the help of three suitable examples.
Study the figure (a) and (b) given below and answer the questions given after the graphs.
  1. Under the influence of which type of Natural Selection would graph (a) become like graph.
  2. What could be the likely reasons of new variations arising in the population?
  3. Who suggested Natural Selection as a mechanism of evolution?
With the help of a flow chart, show the phenomenon of biomagnification of DDT in an aquatic food chain.

Classify the following composition of blood plasma given below as per Column ‘A’ and complete Column ‘B’. Select from the given options
(i) Serum albumin
(ii) Bicarbonates
(iii) Urea
(iv) Sulphates of sodium
(v) Fibrinogen
(vi) Uric acid

Column AColumn B
(1) Plasma proteins————
(2) Nitrogenous waste————
(3) Inorganic salts————
Describe the experiment that helped Louis Pasteur to dismiss the theory of spontaneous generation of life.