Evolution is the gradual development of species as the result of natural selection.
A fossil is the remains of an ancient organism.
A mutation is a change in an individual's genome.
Natural selection is a phenomenon where the fittest individuals reproduce most effectively.
Extinction is a phenomenon where a species disappears completely.
Archaea and bacteria are primitive, unicellular, prokaryotic organisms.
Eukaryotic organisms are an evolutionary group that consist of protists, plants, animals, and fungi. Their cells have nuclei and specialized organelles.
Cyanobacteria are water-dwelling bacteria capable of photosynthesis.
Angiosperm plants or flowering plants reproduce via flowers. Most plants one can see in Finnish nature are angiosperms.