Euryhaline

Q. Organisms are classified as euryhaline and stenohaline based on their tolerance of .

1. temperature
2. salinity
3. light
4. pH

Q. Organisms that can withstand a wide range of salinity are called ___.

Q.

Mullets, bhetki, pearl spots, prawns, mussels are the example of

1. marine fishes

2. fresh water fishes

3. finned fishes

4. shellfish

Q. Organisms are classified as euryhaline and stenohaline based on their tolerance of .

1. temperature
2. salinity
3. light
4. pH

Q.

Plants growing in dry and saline soil are called as

1. ​​​​​​Xerophytes

2. Hydrophytes

3. Halophytes

4. Heliophytes

Q. Fish living in coastal estuaries are often stenohaline

1. A species which adds up only a small proportion of the total biomass of a community yet has a huge impact on the community’s organization and survival.
2. A common species that has plenty of biomass, yet has a fairly low impact on the community’s organization

Q. Organisms that can withstand a wide range of salinity are called ___.

Q. If an animal of euphotic zone has to survive in abyssal zone, what adaptations are required to survive there?

Q. Organisms that can withstand a wide range of salinity are called ___.

Q.

1. 1, 2 and 3 are correct
   
2. 1 and 2 are correct
   
3. 1 and 3 are correct
   
4. 2 and 4 are correct
   

Q. Fish living in coastal estuaries are often stenohaline

1. True
2. False

Q. Archaebacteria which are seen at extremely high temperature and acidic pH are

1. Thermoacidophiles
2. Methanogens
3. Halophiles
4. Ruminant symbionts

Q. Assertion :Diatom frustules pile up at the bottom of water bodies and form big heaps of diatomite or diatomaceous earth. Reason: Diatom frustules are resistant to natural degradation.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
3. Assertion is correct but Reason is incorrect.
4. Both Assertion and Reason are incorrect.

Q.

Plants growing in dry and saline soil are called as

1. ​​​​​​Xerophytes

2. Hydrophytes

3. Halophytes

4. Heliophytes

Q. What signs can be used to represent the interaction between fishes and flamingoes in the shallow South American lakes ?

1. +, +
2. -, 0
3. -, -
4. +, 0

Q. Fish living in coastal estuaries are often stenohaline

1. True
2. False

Q. A barrier reef develops

1. Near sea shore
2. At some distance from sea shore
3. Around a lagoon
4. Deep in sea

Q. Chief features of family Brassicaceae/Cruciferae is presence of

1. Latex
2. Pectin
3. Alkaloids
4. Myrosin

Q. Organisms are classified as euryhaline and stenohaline based on their tolerance of .

1. temperature
2. salinity
3. light
4. pH