CBSE 10 Science · U2
World of Living
Syllabus-listed 25-mark theory unit covering life processes, control and coordination in animals and plants, reproduction, reproductive health, and heredity. Evolution is treated as formative reinforcement rather than ordinary year-end exam practice.
Test yourself
A focused, distraction-free run through 75 multiple-choice questions. Hints if you need them; your score at the end.
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Topic 2.1
Nutrition and Respiration
Autotrophic nutrition, digestion, enzymes, aerobic and anaerobic respiration, and evidence from experiments.
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Topic 2.2
Transport and Excretion
Transport of water and food in plants, double circulation in humans, and nephron-based excretion.
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Topic 2.3
Control and Coordination
Nervous system, reflex action, voluntary and involuntary actions, tropic movements, plant hormones and animal hormones.
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Topic 2.4
Reproduction and Reproductive Health
Asexual and sexual reproduction in plants and animals, reproductive organs, reproductive health, contraception and safe sex.
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Topic 2.5
Heredity and Sex Determination
Heredity, Mendel's contribution, inheritance of traits, dominant and recessive alleles, and brief sex determination.
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