Who we are
Impact
Student
Tutor
Biology Exemplar
Class 12
NCERT Exemplar
1
Chapter 1: Reproduction in Organisms
48 questions
2
Chapter 2: Sexual Reproduction in Flowering Plants
52 questions
3
Chapter 3: Human Reproduction
48 questions
4
Chapter 4: Reproductive Health
37 questions
5
Chapter 5: Principles of Inheritance and Variation
52 questions
6
Chapter 6: Molecular Basis of Inheritance
71 questions
7
Chapter 7: Evolution
52 questions
8
Chapter 8: Human Health and Disease
70 questions
9
Chapter 9: Strategies for Enhancement in Food Production
77 questions
10
Chapter 10: Microbes in Human Welfare
59 questions
11
Chapter 11: Biotechnology: Principles and Processes
48 questions
12
Chapter 12: Biotechnology and its Applications
52 questions
13
Chapter 13: Organisms and Populations
70 questions
14
Chapter 14: Ecosystem
68 questions
Q1
Fill in the trophic levels (1, 2, 3 and 4) in the boxes provided in the figure.
Q2
The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc.
Discuss.
Discuss.
Q3
A farmer harvests his crop and expresses his harvest in three different ways.
(a) I have harvested 10 quintals of wheat.
(b) I have harvested 10 quintals of wheat today in one acre of land.
(c) I have harvested 10 quintals of wheat in one acre of land, 6 months after sowing.
Do the above statements mean one and the same thing. If your answer is ‘yes’, give reasons. And if your answer is ‘no’ explain the meaning of each expression.
View all question(a) I have harvested 10 quintals of wheat.
(b) I have harvested 10 quintals of wheat today in one acre of land.
(c) I have harvested 10 quintals of wheat in one acre of land, 6 months after sowing.
Do the above statements mean one and the same thing. If your answer is ‘yes’, give reasons. And if your answer is ‘no’ explain the meaning of each expression.
15
Chapter 15: Biodiversity and Conservation
61 questions
16
Chapter 16: Environmental Issues
52 questions
Question
Easy
Solving time: 2 mins
The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc.
Discuss.
Views: 5,772 students
Found 6 tutors discussing this question
Discuss this question LIVE
11 mins ago
Text solution
Verified
Decomposition of dead remain or matter of animal and plant is carried out by microorganisms like bacteria, fungi etc. The growth rate of these decomposers is affected by abiotic factors like temperature, humidity, pH of soil and light etc.
The soil pH affect the composition of acidophilic and basophilic microorganisms. In absence or presence of oxygen aerobic and anaerobic processes occurs.
In presence of oxygen, complete degradation of substance occurs while in absence of oxygen, there will be an incomplete degradation. Similarly, at high temperature microbes can not grow optimally but high or low temperature favours the growth of stress tolerant microorganisms.
The soil pH affect the composition of acidophilic and basophilic microorganisms. In absence or presence of oxygen aerobic and anaerobic processes occurs.
In presence of oxygen, complete degradation of substance occurs while in absence of oxygen, there will be an incomplete degradation. Similarly, at high temperature microbes can not grow optimally but high or low temperature favours the growth of stress tolerant microorganisms.
Was this solution helpful?
59
Share
Report
One destination to cover all your homework and assignment needs
Learn Practice Revision Succeed
Instant 1:1 help, 24x7
60, 000+ Expert tutors
Textbook solutions
Big idea maths, McGraw-Hill Education etc
Essay review
Get expert feedback on your essay
Schedule classes
High dosage tutoring from Dedicated 3 experts
Practice more questions from Biology Exemplar (NCERT Exemplar)
Q1
Fill in the trophic levels (1, 2, 3 and 4) in the boxes provided in the figure.
Q2
The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc.
Discuss.
Discuss.
Q3
A farmer harvests his crop and expresses his harvest in three different ways.
(a) I have harvested 10 quintals of wheat.
(b) I have harvested 10 quintals of wheat today in one acre of land.
(c) I have harvested 10 quintals of wheat in one acre of land, 6 months after sowing.
Do the above statements mean one and the same thing. If your answer is ‘yes’, give reasons. And if your answer is ‘no’ explain the meaning of each expression.
View all(a) I have harvested 10 quintals of wheat.
(b) I have harvested 10 quintals of wheat today in one acre of land.
(c) I have harvested 10 quintals of wheat in one acre of land, 6 months after sowing.
Do the above statements mean one and the same thing. If your answer is ‘yes’, give reasons. And if your answer is ‘no’ explain the meaning of each expression.
Practice questions from Biology Exemplar (NCERT Exemplar)
Question 1
Hard
Views: 5,966
A young forest, a natural old forest, a shallow polluted lake, alpine meadow.
Question 3
Easy
Views: 5,866
Practice more questions from Ecosystem
Question 1
Hard
Views: 5,648
Question 2
Easy
Views: 6,059
(a) Plants are called as .......... because they fix carbon dioxide.
(b) In an ecosystem dominated by trees, the pyramid (of numbers) is .......... type.
(c) In aquatic ecosystems, the limiting factor for the productivity is ..........
(d) Common detritivores in our ecosystem are ..........
(e) The major reservoir of carbon on earth is ..........
Practice questions on similar concepts asked by Filo students
Question 2
Views: 5,401
Question 3
Views: 5,964
Question 4
Views: 5,825
Stuck on the question or explanation?
Connect with our Biology tutors online and get step by step solution of this question.
231 students are taking LIVE classes
| Question Text | The rate of decomposition of detritus is affected by the abiotic factors like availability of oxygen, pH of the soil substratum, temperature etc. Discuss. |
| Topic | Ecosystem |
| Subject | Biology |
| Class | Class 12 |
| Answer Type | Text solution:1 |
| Upvotes | 59 |
