Class 12 Biology Organisms and Populations MCQ Questions
MCQ Questions for Class 12 Biology Organisms and Populations. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Practice set
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
C. Major biomes as in remaining text
D. Interactions: predation, competition, mutualism
Answer
C. Major biomes as in remaining text
Explanation
Major biomes as in remaining text. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Population growth models
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Age pyramids
Answer
A. Population growth models
Explanation
Population growth models. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Interactions in the chapter Organisms and Populations.
A. Write three points from Organisms and Populations in your own words; that is enough for a short-answer start
B. Carrying capacity
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Interactions: predation, competition, mutualism
Answer
D. Interactions: predation, competition, mutualism
Explanation
Interactions: predation, competition, mutualism. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Age pyramids
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Age pyramids
Explanation
Age pyramids. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. Mix MCQs with short answers so you remember both facts and explanations from Organisms and Populations
D. Carrying capacity
Answer
D. Carrying capacity
Explanation
Carrying capacity. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q6MCQ1 markEasy
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
B. Age pyramids
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Organisms and Populations in your own words; that is enough for a short-answer start
Answer
A. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
Explanation
Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q7MCQ1 markEasy
Choose the correct statement related to Textbook first in the chapter Organisms and Populations.
A. The textbook says the opposite of this statement
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
D. Use the terms used in the NCERT book; do not replace them with unofficial names
Answer
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
Explanation
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q8MCQ1 markEasy
Choose the correct statement related to Keywords in the chapter Organisms and Populations.
A. This happens only in a laboratory and never in daily life
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. Mix MCQs with short answers so you remember both facts and explanations from Organisms and Populations
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Answer
D. Every chapter ends with keywords or a summary that is useful for one-mark answers
Explanation
Every chapter ends with keywords or a summary that is useful for one-mark answers. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Organisms and Populations.
A. This idea is not part of the NCERT chapter
B. Major biomes as in remaining text
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Write three points from Organisms and Populations in your own words; that is enough for a short-answer start
Answer
C. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q10MCQ1 markModerate
Choose the correct statement related to Diagrams in the chapter Organisms and Populations.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. The textbook says the opposite of this statement
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Population growth models
Answer
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Explanation
If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q11MCQ1 markEasy
Choose the correct statement related to Revision in the chapter Organisms and Populations.
A. Write three points from Organisms and Populations in your own words; that is enough for a short-answer start
B. This happens only in a laboratory and never in daily life
C. Mix MCQs with short answers so you remember both facts and explanations from Organisms and Populations
D. Interactions: predation, competition, mutualism
Answer
A. Write three points from Organisms and Populations in your own words; that is enough for a short-answer start
Explanation
Write three points from Organisms and Populations in your own words; that is enough for a short-answer start. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q12MCQ1 markEasy
Choose the correct statement related to Accuracy in the chapter Organisms and Populations.
A. Age pyramids
B. Major biomes as in remaining text
C. This idea is not part of the NCERT chapter
D. Use the terms used in the NCERT book; do not replace them with unofficial names
Answer
D. Use the terms used in the NCERT book; do not replace them with unofficial names
Explanation
Use the terms used in the NCERT book; do not replace them with unofficial names. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Organisms and Populations.
A. Population growth models
B. The textbook says the opposite of this statement
C. Carrying capacity
D. Mix MCQs with short answers so you remember both facts and explanations from Organisms and Populations
Answer
D. Mix MCQs with short answers so you remember both facts and explanations from Organisms and Populations
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Organisms and Populations. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q14MCQ1 markEasy
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. This happens only in a laboratory and never in daily life
C. Major biomes as in remaining text
D. Age pyramids
Answer
C. Major biomes as in remaining text
Explanation
Major biomes as in remaining text. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q15MCQ1 markModerate
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Population growth models
B. Carrying capacity
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Major biomes as in remaining text
Answer
A. Population growth models
Explanation
Population growth models. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q16MCQ1 markEasy
Choose the correct statement related to Interactions in the chapter Organisms and Populations.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Population growth models
C. Interactions: predation, competition, mutualism
D. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
Answer
C. Interactions: predation, competition, mutualism
Explanation
Interactions: predation, competition, mutualism. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Interactions: predation, competition, mutualism
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. Age pyramids
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
C. Age pyramids
Explanation
Age pyramids. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q18MCQ1 markEasy
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Age pyramids
B. Carrying capacity
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Organisms and Populations in your own words; that is enough for a short-answer start
Answer
B. Carrying capacity
Explanation
Carrying capacity. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q19MCQ1 markEasy
Choose the correct statement related to Organisms and Populations in the chapter Organisms and Populations.
A. Carrying capacity
B. This topic is only for college
C. Population growth models
D. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
Answer
D. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
Explanation
Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q20MCQ1 markModerate
Choose the correct statement related to Textbook first in the chapter Organisms and Populations.
A. Organisms and Populations is an NCERT chapter taught in CBSE Class 12 Biology
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Mix MCQs with short answers so you remember both facts and explanations from Organisms and Populations
Answer
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
Explanation
Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Biology · Chapter: Organisms and Populations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
How should I use the 100 questions?
Try the question first, then tap Show answer. Mix MCQs with long answers. Revise formulas and diagrams from the textbook alongside this set.
Where are NCERT solutions?
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-12/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “MCQ Questions” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
