Organisms and Populations
CBSE · Class 12 · Biology
Flashcards for Organisms and Populations — CBSE Class 12 Biology. Quick Q&A cards covering key concepts, definitions, and formulas.
Interactive on Super Tutor
Studying Organisms and Populations? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for flashcards and more.
1,000+ Class 12 students started this chapter today
Learn better with visuals Super Tutor has hundreds of illustrations like this across every chapter — all free to try.
Get startedWhat is a population in ecological terms?
Answer
A population is a group of individuals of the same species living in a well-defined geographical area, sharing or competing for similar resources, and potentially interbreeding. Examples: All cormoran…
What is a population in ecological terms?
Answer
A population is a group of individuals of the same species living in a well-defined geographical area, sharing or competing for similar resources, and potentially interbreeding. Examples: All cormoran…
How do you calculate birth rate and death rate in a population?
Answer
Birth rate = Number of births / Initial population size Death rate = Number of deaths / Initial population size Example: If 20 lotus plants produce 8 new plants in a year, birth rate = 8/20 = 0.4 offs…
How do you calculate birth rate and death rate in a population?
Answer
Birth rate = Number of births / Initial population size Death rate = Number of deaths / Initial population size Example: If 20 lotus plants produce 8 new plants in a year, birth rate = 8/20 = 0.4 offs…
What is an age pyramid and what does its shape indicate?
Answer
An age pyramid is a graphical representation showing the age distribution of males and females in a population. The shape indicates population growth status: (a) Expanding base - growing population, (…
What is an age pyramid and what does its shape indicate?
Answer
An age pyramid is a graphical representation showing the age distribution of males and females in a population. The shape indicates population growth status: (a) Expanding base - growing population, (…
What is the equation for exponential population growth?
Answer
dN/dt = rN Where: N = population size, t = time, r = intrinsic rate of natural increase (r = b - d, where b = birth rate, d = death rate) Integral form: Nt = N0e^rt This produces a J-shaped curve when…
What is the equation for exponential population growth?
Answer
dN/dt = rN Where: N = population size, t = time, r = intrinsic rate of natural increase (r = b - d, where b = birth rate, d = death rate) Integral form: Nt = N0e^rt This produces a J-shaped curve when…
+32 more flashcards available
Practice AllFrequently Asked Questions
What are the important topics in Organisms and Populations for CBSE Class 12 Biology?
How to score full marks in Organisms and Populations — CBSE Class 12 Biology?
How many flashcards are available for Organisms and Populations?
Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Organisms and Populations
Important Questions
Practice with board exam-style questions
Syllabus
What topics to cover
Revision Notes
Key points for last-minute revision
Study Plan
Step-by-step plan to ace this chapter
Formula Sheet
All formulas in one place
Chapter Summary
Understand the chapter at a glance
Practice Quiz
Test yourself with a quick quiz
Concept Maps
See how topics connect visually
NCERT Solutions
Every textbook question solved step by step
For serious students
Get the full Organisms and Populations chapter — for free.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan for CBSE Class 12 Biology.