Advertisements
Advertisements
प्रश्न
If a marine fish is placed in a freshwater aquarium, will it be able to survive? Give reason.
Advertisements
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
Mention if the following statement is true or false .
No ecosystem can survive without light
Man is ______ in an ecosystem.
Differentiate between primary and secondary producers and give examples of each.
Name two types of food chain.
Primary consumers in detritus food chain are
The driving force for an ecosystem is
Distinguish between the following:
Ectotherms and Endotherms
Match the Columns.
| Column I | Column II | ||
| i. | Hibernation | a. | Birds in winter |
| ii. | Aestivation | b. | Polar bear in winter |
| iii. | Migration | c. | Some snails and fish in summer |
Some snails and fish go into ____________ to avoid summer heat.
Distinguish between the following:
Hibernation and Aestivation.
