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BIOLOGY, 13.2 (3A 2nd trimester midterm 2) - Coggle Diagram
BIOLOGY, 13.2 (3A 2nd trimester midterm 2)
variation, selection and evolution
l'albero della vita
mostra evoluzioni fondamentali tra tutti gli esseri viventi sulla terra
3 ramificazioni o domains
eukaryotes (animals, fungi, plants, protis), bacteria (prokaryotes and present in all environments), archibacteria(different from bacteria on molecular level)
sistema taxonomico
domain, kingdom, phylum, class, order, family, genus, species.
Le relazioni di parentela tra le specie rappresentate con schemi ramificati detti alberi filogenetici o alberi evolutivi.
Species: natural set of individuals that can interbreed with each other and produce fertile offspring
Population: a group of organisms of the same species, living in the same area at the same time
domains: archea, bacteria, eukarya(animals, plants, fungi, protis)
kingdom: archaebacteria, eubacteria, protista, fungi, plantae, animalia
phylum: porifera(sponge), cnidaria, ctenophora, aschelminthes, arthropoda, nematoda(round worms), annelida(segmented worms), mollusca, platyhelminthes(flatworms), echinodermata, chordata(animals)
theory of evolution by natural selection
Charles Darwin and Alfred Russel Wallace
Darwin defined evolution as "descent with modification
Darwin observations of the Galápagos Islands
nearby islands in the Galápagos had similar but non identical species of finches
animals on the Galápagos Islands were similar to species on the nearby mainland of Ecuador, but different from those found elsewhere in the world
crucial points
variation
overproduction
struggle for existence
survival of the fittest
advantageous characteristics passed on to offspring
gradual change