344454
Statement A : Humus is highly resistant to microbial action and undergoes decomposition at an extremely slow rate. Statement B : Humus serves as a reservoir of nutrients.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both statements are correct.
BIOXII14: ECOSYSTEM
344455
Dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers etc constitute i. Litter fall ii. Below ground detritus iii. Above ground detritus
1 i and iii
2 ii and iii
3 Only ii
4 i and ii
Explanation:
i and iii are correct, Litter fall and Above ground detritus will have dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers.
BIOXII14: ECOSYSTEM
344456
The rate of decomposition is quicker when detritus is rich in
1 Nitrogen and sugar
2 Phosphorus and nitrogen
3 Calcium and sugar
4 Both 1 and 3
Explanation:
Decomposition rate is quicker, if detritus is rich in nitrogen and water-soluble substances like sugars.
BIOXII14: ECOSYSTEM
344457
Which of the following factor doesnot influence the activity of detritivores and decomposer microbes
1 Temperature
2 Soil moisture
3 Amount of organic matter in detritus
4 Aerobic condition
Explanation:
Amount of organic matter doesnot affect activity of detritivores and decomposers but Warm and moist environment favour decomposition whereas low temperature and anaerobiosis inhibit decomposition resulting in build up of organic materials.
344454
Statement A : Humus is highly resistant to microbial action and undergoes decomposition at an extremely slow rate. Statement B : Humus serves as a reservoir of nutrients.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both statements are correct.
BIOXII14: ECOSYSTEM
344455
Dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers etc constitute i. Litter fall ii. Below ground detritus iii. Above ground detritus
1 i and iii
2 ii and iii
3 Only ii
4 i and ii
Explanation:
i and iii are correct, Litter fall and Above ground detritus will have dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers.
BIOXII14: ECOSYSTEM
344456
The rate of decomposition is quicker when detritus is rich in
1 Nitrogen and sugar
2 Phosphorus and nitrogen
3 Calcium and sugar
4 Both 1 and 3
Explanation:
Decomposition rate is quicker, if detritus is rich in nitrogen and water-soluble substances like sugars.
BIOXII14: ECOSYSTEM
344457
Which of the following factor doesnot influence the activity of detritivores and decomposer microbes
1 Temperature
2 Soil moisture
3 Amount of organic matter in detritus
4 Aerobic condition
Explanation:
Amount of organic matter doesnot affect activity of detritivores and decomposers but Warm and moist environment favour decomposition whereas low temperature and anaerobiosis inhibit decomposition resulting in build up of organic materials.
344454
Statement A : Humus is highly resistant to microbial action and undergoes decomposition at an extremely slow rate. Statement B : Humus serves as a reservoir of nutrients.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both statements are correct.
BIOXII14: ECOSYSTEM
344455
Dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers etc constitute i. Litter fall ii. Below ground detritus iii. Above ground detritus
1 i and iii
2 ii and iii
3 Only ii
4 i and ii
Explanation:
i and iii are correct, Litter fall and Above ground detritus will have dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers.
BIOXII14: ECOSYSTEM
344456
The rate of decomposition is quicker when detritus is rich in
1 Nitrogen and sugar
2 Phosphorus and nitrogen
3 Calcium and sugar
4 Both 1 and 3
Explanation:
Decomposition rate is quicker, if detritus is rich in nitrogen and water-soluble substances like sugars.
BIOXII14: ECOSYSTEM
344457
Which of the following factor doesnot influence the activity of detritivores and decomposer microbes
1 Temperature
2 Soil moisture
3 Amount of organic matter in detritus
4 Aerobic condition
Explanation:
Amount of organic matter doesnot affect activity of detritivores and decomposers but Warm and moist environment favour decomposition whereas low temperature and anaerobiosis inhibit decomposition resulting in build up of organic materials.
344454
Statement A : Humus is highly resistant to microbial action and undergoes decomposition at an extremely slow rate. Statement B : Humus serves as a reservoir of nutrients.
1 Statement A is correct but Statement B is incorrect.
2 Statement A is incorrect but Statement B is correct.
3 Both statements are correct.
4 Both Statements are incorrect.
Explanation:
Both statements are correct.
BIOXII14: ECOSYSTEM
344455
Dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers etc constitute i. Litter fall ii. Below ground detritus iii. Above ground detritus
1 i and iii
2 ii and iii
3 Only ii
4 i and ii
Explanation:
i and iii are correct, Litter fall and Above ground detritus will have dead remains of animals including faecal matter, drop over soil and dried plant parts like leaves, bark, flowers.
BIOXII14: ECOSYSTEM
344456
The rate of decomposition is quicker when detritus is rich in
1 Nitrogen and sugar
2 Phosphorus and nitrogen
3 Calcium and sugar
4 Both 1 and 3
Explanation:
Decomposition rate is quicker, if detritus is rich in nitrogen and water-soluble substances like sugars.
BIOXII14: ECOSYSTEM
344457
Which of the following factor doesnot influence the activity of detritivores and decomposer microbes
1 Temperature
2 Soil moisture
3 Amount of organic matter in detritus
4 Aerobic condition
Explanation:
Amount of organic matter doesnot affect activity of detritivores and decomposers but Warm and moist environment favour decomposition whereas low temperature and anaerobiosis inhibit decomposition resulting in build up of organic materials.
