Chapter 25 Ecosystem Biology 12th Class Punjab MCQ Tests
12th Class Biology Chapter 25 MCQ Tests
Chapter 25 of 12th Class Biology has 25 questions. If you take an online MCQ test, the system will randomly choose the questions. If you want to take the quiz by chapter then click the start test button.
Total Questions: 25
Total Marks: 25
Time: 25 Mins
Total Questions: 25
Total Marks: 25
Time: 25 Mins
25Min : 00 Sec Remaining
Question # 1
Which is the largest nitrogen sink?
Question # 2
Kind of symbiosis in which only one partner is benefited and other is not harmed and benefited is
Question # 3
An association of individuals of different species living in the same habitat and having functional interactions is:
Question # 4
Nitrogen depletion can be reduced by:
Question # 5
Solar or radiant energy is involved in life because
Question # 6
Which of the following statement is correct about autecology?
Question # 7
Every ecosystem is characterized by which fundamental phenomena?
Question # 8
Which of the following branch of biology deals with the interactions of living organisms with their non-living environment?
Question # 9
Last stable community in succession dependent on climate is:
Question # 10
Deserts, grasslands, forests and tundra are the examples of:
Question # 11
Tertiary consumers that are fed on primary carnivores are also known as
Question # 12
Ecology deals with the study of:
Question # 13
The invasion of a new community in a bare area is initiated by:
Question # 14
Colors of light which are most useful in photosynthesis
Question # 15
The first species to colonize a barren area is called a
Question # 16
Why are there fewer organisms at the top of an energy pyramid?
Question # 17
Synecology deals with which of the following?
Question # 18
If all the plants of the world die, all the animals will also die due to shortage of:
Question # 19
Which of the following statement is correct about ecosystem?
Question # 20
Which of the following statements about energy transfer in a food chain is true?
Question # 21
Sum of all ecosystems is classified as:
Question # 22
Which one of the following terms includes all of the others?
Question # 23
Which of the following is not true for a species?
Question # 24
The community which begins succession in a habitat is designated as:
Question # 25
In the earth's ecosystems, energy
Total Questions
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Question # 1
Which is the largest nitrogen sink?
Question # 2
Kind of symbiosis in which only one partner is benefited and other is not harmed and benefited is
Question # 3
An association of individuals of different species living in the same habitat and having functional interactions is:
Question # 4
Nitrogen depletion can be reduced by:
Question # 5
Solar or radiant energy is involved in life because
Question # 6
Which of the following statement is correct about autecology?
Question # 7
Every ecosystem is characterized by which fundamental phenomena?
Question # 8
Which of the following branch of biology deals with the interactions of living organisms with their non-living environment?
Question # 9
Last stable community in succession dependent on climate is:
Question # 10
Deserts, grasslands, forests and tundra are the examples of:
Question # 11
Tertiary consumers that are fed on primary carnivores are also known as
Question # 12
Ecology deals with the study of:
Question # 13
The invasion of a new community in a bare area is initiated by:
Question # 14
Colors of light which are most useful in photosynthesis
Question # 15
The first species to colonize a barren area is called a
Question # 16
Why are there fewer organisms at the top of an energy pyramid?
Question # 17
Synecology deals with which of the following?
Question # 18
If all the plants of the world die, all the animals will also die due to shortage of:
Question # 19
Which of the following statement is correct about ecosystem?
Question # 20
Which of the following statements about energy transfer in a food chain is true?
Question # 21
Sum of all ecosystems is classified as:
Question # 22
Which one of the following terms includes all of the others?
Question # 23
Which of the following is not true for a species?
Question # 24
The community which begins succession in a habitat is designated as:
Question # 25
In the earth's ecosystems, energy
Total Questions
12345678910111213141516171819202122232425
Biology MCQ Test by Topics
- +25.1 Ecosystem
- +25.1.1 Biosphere
- +25.1.2 Autecology
- +25.1.3 Synecology
- +25.2 Components of Ecosystem
- +25.2.1 Biotic Components
- +25.2.2 Abiotic Components
- +25.3 Succession
- +25.3.1 Two Major forms of Succession
- +25.3.2 Predation and its Significance
- +25.3.3 Parasitism and its Significance
- +25.3.4 Symbiosis
- +25.3.5 Mutualism
- +25.3.5 Commensalism
- +25.3.6 Grazing
- +25.4 Biogeochemical Cycles
- +25.4.1 The Nitrogen Cycle
- +25.4.2 Nitrogen Deplition and its Remedies
- +25.4.3 The Flow of Energy in Food Chain of an Ecosystem
Biology
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