evolution Flashcards
what’s evolution?
the change in the traits of a population over time
a population is…
a group of a single species that reproduce together.
a species…
the lowest level of classification that results in viable offspring
who developed the concept of species?
carolus linnaeus.
who said certain fossils only show up in certain rock beds?
george cuvier.
who said more humans are born than survive to reproduce.
thomas malthus.
who said the earth is older than people thought?
charles lyell.
how would jean-baptiste lamarck think that giraffes developed long necks?
the giraffes stretched their necks a lot and they adapted to become long.
what does descent with modification state?
that organisms have a common ancestor and the environment “selects” for certain traits
what did charles darwin propose
the mechanism of natural selection
occurs when bacteria split into 2 cells in one step
binary fision
