Biological earth Flashcards
Geologic timeline provides what?
a context for the understanding of the origin and evolution of life on Earth.
Single-celled organisms called?
– Prokaryotes with no distinct nucleus.
what are multi celled organisms called?
Eukaryotes composed of cells that have a well-defined nucleus and organelles.
what was the Age of Invertebrates?
– first shelled organisms and fishes.
what was Mass Extinction?
– loss of many marine organisms, including trilobites, dinosaurs and many other organisms.
what was the Age of Fishes?
– first land plants and insects.
what is the Age of Amphibians?
– large coal swamps and first reptiles.
what was Mesozoic life?
Age of Reptiles
what was Cenozoic life?
Age of Mammals – first primates and development and extinction of giant mammals.
what was Precambrian life?
Single-celled organisms
Multi-celled organisms
how was cenozoic life and human evolution connected?
Human evolution – timeline for the evolution of humans over the last six million years.
