Put These Notes into Practice
Reading the notes is a great start. Now practise with unlimited AI-generated questions and get instant feedback. 100,000+ students are already improving their grades.
Biology
8 sections available · 39 chapters available
Free Biology study notes for Senior High School students. Each chapter covers a key topic with examples and practice prompts you can continue inside the thinka app.
Basic Biology (1) Characteristics of Organisms
Commonality and diversity of organisms
Organisms and energy (metabolism and ATP)
Genetic information and DNA
Genetic information and protein synthesis
Inquiry: common features of diverse organisms
Basic Biology (2) Regulation of the Human Body
Transmission of information
Mechanisms maintaining the internal environment
The working of immunity
Inquiry: features of nervous, endocrine and immune regulation
Basic Biology (3) Biodiversity and Ecosystems
Vegetation and succession
Ecosystems and biological diversity
Ecosystem balance and conservation
Inquiry: diversity and organism-environment relationships
Biology (1) Evolution of Organisms
Origin of life and evolution of the cell
Changes in genes (mutation)
Changes in gene combinations
Mechanisms of evolution
Phylogeny and evolution of organisms
Phylogeny and evolution of humans
Inquiry: characteristics of evolution
Biology (2) Life Phenomena and Substances
Biological substances and the cell
Life phenomena and proteins
Respiration
Photosynthesis
Inquiry: characteristics of life phenomena and substances
Biology (3) Gene Expression and Development
Genetic information and its expression
Regulation of gene expression
Development and gene expression
Technologies for handling genes
Inquiry: characteristics of gene-expression regulation
Biology (4) Environmental Responses of Organisms
Reception of stimuli and response
Animal behaviour
Environmental responses of plants
Inquiry: features of responses to environmental change
Biology (5) Ecology and Environment
Populations
Biological communities
Material production and material cycling in ecosystems
Ecosystems and human life
Inquiry: relationships among organisms and with the environment
Done reading? Test yourself with AI practice questions
Practise This Topic Now