Class 12 · Biology
Organisms and Populations
NEET questions.
Build recall through active solving with original NEET-style MCQs, worked explanations and chapter-level NCERT provenance.
150 verified questions · NCERT chapter mapped · automatic error log
BiologyPlate 31
NeetVellum atlas · fig. biology
31
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Three examples from the live 150-question bank. Answers appear after attempting them in practice mode.
Example 1 · difficulty 1/5
A wildlife biologist records that in a tiger reserve, 40 cubs were born during a year in a population of 800 tigers. The population attribute she has measured, when standardised, is called:
- A. Sex ratio
- B. Age pyramid
- C. Birth rate
- D. Population density
Example 2 · difficulty 2/5
An insect pest reaches a greenhouse with unlimited food and space. Its initial population is 1000 and its intrinsic rate of natural increase (r) is 0.1 per individual per year. Assuming exponential growth, what will the population size be after 10 years? (Take e = 2.72)
- A. About 2720
- B. About 1720
- C. About 3720
- D. About 10000
Example 3 · difficulty 2/5
In the Verhulst–Pearl logistic growth equation dN/dt = rN[(K − N)/K], the symbol K stands for:
- A. The intrinsic rate of natural increase
- B. The maximum reproductive potential under ideal conditions
- C. The fraction of resources still unused by the population
- D. The carrying capacity, i.e. the maximum population size the environment can sustain
The chapter mastery loop
- 1. Attempt firstExpose recall gaps before rereading.
- 2. Classify the missConcept, careless, rushed or guessed.
- 3. Re-practiceReturn until the error pattern disappears.
Frequently asked questions
How many Organisms and Populations NEET questions are available?
NeetVellum publishes 150 verified questions for this chapter. Free accounts use the daily UG quota; UG Pro removes it.
How should I revise Organisms and Populations for NEET?
Attempt questions before rereading, classify each miss, revisit the exposed NCERT concept, then re-practice until the error pattern disappears.