Download App

Ecosystems — BIOLOGY STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceBIOLOGYEcosystems2 Marks
Question
Give two examples of artificial or man made ecosystems. List the salient features by which they differ from natural ecosystems.
✓

Answer

Crop fields and an aquarium considered as man-made ecosystems. In artificial ecosystems the biotic and abiotic components of ecosystems are maintained artificially by regular feeding and clearing of aquarium and regular irrigation and sowing of seeds in crop field ecosystem. Natural ecosystem self sustains biotic and abiotic components of an ecosystem.

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

Explore more

More "Answer the following questions." from Ecosystems→Ecosystems — all question types→BIOLOGY STD 12 Science question papers→Maharashtra Board STD 12 Science question papers→Maharashtra Board question paper generator→

Similar questions

Describe the responsibility of GEAC, set up by the Indian Government.
→
Explain how Bacillus thuringiensis acts as a bio-control agent.
→
Write a note on the packaging of DNA in prokaryotes.
→
Hat is ovulation? What happens to the Graafian follicle after ovulation?
→
Do you think that the alternate splicing of exons may enable a structural gene to code for several isoproteins from one and the same gene? If yes, how? If not, why so?
→
Differentiate between euchromatin and heterochromatin.
→
Name two drugs obtained from poppy plant. "These drugs are medically useful, but are often abused". Taking the mentioned examples justify by giving reasons.
→
Write the binomials of two fungi and mention the products/bioactive molecules they help to produce.
→
Why is pedigree analysis done in humans? List two reasons why the Mendelian experiments cannot be carried out in human beings.
→

Capillary water, Combined water, Hygroscopic water, Gravitational water.

Column AColumn B
(1) Water adsorbed on soil particles—————
(2) Water penetrated deep in soil————–
(3) Water present as hydrated oxides————-
(4) Water present between soil particles————-
→