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6 Written questions

6 Multiple choice questions

  1. the period in the geologic time scale beginning about 65 million years ago and continuing until the present day- most fossils from this era. Many mammals, birds, insects, and flowering plants. Humans and their ancestors are in this era
  2. the first primate ancestor; also, a group of living primates that includes lorises and lemurs, 55 million years ago
  3. a species of hominid that lived in Europe and Western Asia from 230,000 years ago to about 30,000 years ago
  4. a period in the geological time scale beginning when the Earth originated, 4.6 million years ago, and ending when complex organisms appeared, about 540 million years ago- no oxygen in the atmosphere and all creatures lived in the ocean to escape harmful UV rays. Prokaryotes only exsisted. They were anaerobic. Then, cyanobacteria (photosynthetic organisms) began to produce oxygen that seeped through the water, into the atmosphere, and formed the ozone layer. Eukaryotes began to develop.
  5. mass extinction of most of a species
  6. family referring specifically to humans and several extinct human-like species, some of which were human ancestors, 4.4 million years ago

5 True/False questions

  1. List the defining characteristics for each era.Precambrian: cyanobacteria, eukaryotes, prokaryotes, oxygen in the atmosphere, ozone
    Paleozoic: creepers, plants, aerobic animals
    Mesozoic: Age of the Reptiles, dinosaurs
    Cenozoic: humans and their ancestors


  2. Mesozoic Erathe period in the geologic time scale beginning about 248 million years ago and lasting about 183 million years ago- called Age of the Reptiles. Dinosaurs, marine lizards, birds, cone-bearing trees, and starting flower bearing plants.


  3. Absolute Datingdetermining whether an event or object, such as a fossil, is older or younger than other events or objects


  4. Prokaryotea cell that does not have a nucleus or any other membrane-covered organelles; also called a bacterium


  5. Eukaryotea cell that contains a central nucleus and a complicated internal structure