Advertisements
Advertisements
प्रश्न
If a marine fish is placed in a freshwater aquarium, will it be able to survive? Give reason.
उत्तर
i. If a marine fish is placed in a freshwater aquarium, fish would not be able to survive because marine fish are adapted to high salt concentrations in the marine environment.
ii. Marine fish have their own osmoregulation, which is different from the osmoregulation seen in freshwater fish. In marine water, the ambient salinity is more than the concentration of ions in the body, but in freshwater, the reverse is the case. Therefore, marine fish have different machinery to cope with high-saline environments.
iii. When marine fish are placed in a freshwater aquarium, water enters their bodies through osmosis, as freshwater creates a hypotonic environment outside their bodies.
iv. Water entering the body causes it to swell, leading to the death of the marine fish.
APPEARS IN
संबंधित प्रश्न
Air, water, minerals, soil are ___________ factors of an ecosystem.
Name the climatic impacts that occur on ecosystems.
How does energy move in an ecosystem?
What is a food chain?
An ecosystem is an interacting system of
Trophical forests are denser due to
How is the dormancy of seeds different from hibernation in animals?
Distinguish between the following: Ectotherms and Endotherms.
How ‘Temperature’ as an abiotic factor plays a role in ecology?
Explain the role of any three abiotic factors affecting the environment.
Changes in our surroundings that make us respond to them are called ______.
State whether the following statement is true or false. If false, give the correct statement.
Forests protect the soil from erosion
“A bunch of seedlings were seen sprouting on a heap of animal dropping in a forest.” How do you think the seedling benefited from the animal dung?
Plants are producers because they make their own food by ______.
Complete the flow chart:
Choose the option giving correct matching the items given in column-I & II.
| Column- I | Column-II | ||
| A | Physical environment | (i) | Ozone layer depletion |
| B | Exposure to UV radiation |
(ii) | Bacteria and Fungi |
| C | Chlorofluoro Carbon compounds | (iii) | Abiotic components |
| D | Decomposers | (iv) | Skin Cancer |
Distinguish between the following:
Hibernation and Aestivation.
Distinguish between the following:
Hibernation and Aestivation
Distinguish Between the following:
Hibernation and Aestivation
