Biology quizzes
How life works, from molecules, cells and genes to the growth, evolution and interactions of plants and animals.
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Cell Biology
How cells trigger their own death, and why this carefully controlled process helps keep the body healthy.
1 quiz -
Developmental Biology
How a single cell becomes a body, and how cells specialize, communicate and organize into tissues and organs.
1 quiz -
Ecology
How energy flows through food webs and why ecosystems support so few large predators.
1 quiz -
Evolution
How evolutionary ideas developed and why living things carry traces of their history, even in the eye’s imperfect structure.
2 quizzes -
General Chemistry
How atoms and molecules shape matter’s properties, from chemical bonds to why ice floats on water.
1 quiz -
Genetics
How genes and chromosomes shape inherited traits, and why calico cats are almost always female.
1 quiz -
Molecular Biology
How bacteria fight viruses and how their defenses became tools for editing DNA.
1 quiz -
Organic Chemistry
How the shape of organic molecules affects their properties, including why mirror-image molecules can smell different.
1 quiz -
Plant Biology (Botany)
How water moves from roots to leaves, and the forces that let trees lift it without pumps.
1 quiz
The whole quiz comes before your apps
BrainTok asks a few questions like these before the apps you choose open, so your screen time turns into learning. For iPhone.
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