Grade 8 › Biology
Class 8 Biology
Master all 7 chapters with concept notes, worked examples, and MCQ tests — all free.
7 Chapters
Online MCQ Tests
IMO Practice
Free Forever
Why Cells Divide
The Cell Cycle
Mitosis
Meiosis
Chromosomes, DNA, and Genes
Heredity and Mendel's Experiments
Dominant and Recessive Traits
Sex Determination and Sex-Linked Traits
Mutations
Types of Microorganisms
Useful Microorganisms
Harmful Microorganisms
Communicable Diseases
Immune System
Antibiotics
Food Preservation
Modes of Nutrition
Photosynthesis in Detail
Mineral Nutrition in Plants
The Human Digestive System
Enzymes in Digestion
Absorption and Assimilation
Chloroplast Structure
Light Reactions
Dark Reactions (Calvin Cycle
Factors Affecting Photosynthesis
Transpiration
Transport in Plants
Plant Growth Regulators
Cellular Respiration
Anaerobic Respiration
The Human Respiratory System
Gas Exchange and Transport
The Human Circulatory System
Blood
Blood Vessels
The Lymphatic System
Excretion in Plants
The Human Excretory System
Urine Formation
The Skin as an Excretory Organ
Structure of a Neuron
Types of Neurons
The Nerve Impulse
The Human Nervous System
The Brain
Reflex Action
Endocrine Glands and Hormones
Feedback Mechanism
The Human Reproductive System
The Menstrual Cycle
Fertilisation and Development
Adolescence and Puberty
Reproductive Health