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6 Written Questions

6 Multiple Choice Questions

  1. mass extinction of most of a species
  2. family referring specifically to humans and several extinct human-like species, some of which were human ancestors, 4.4 million years ago
  3. the 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.
  4. opposable thumbs, opposable big toes in all primates except humans, 5 fingers, binocular vision
  5. a cell that contains a central nucleus and a complicated internal structure
  6. the period in the geologic time scale beginning about 540 million years ago and ending about 248 million years ago- fish, sponges, corals, snails, clams, squids, and trilobites were abundant. Plants, fungi, and aerobic organisms colonized on land. Creepers began to crawl on land.

5 True/False Questions

  1. Cro-Magnonsa species of humans with modern features that may have migrated out of Africa 100,000 years ago and eventually into every continent


  2. Precambrian Timea 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.


  3. Australopithecineestimating the age of a sample or event in years , usually by measuring the amount of unstable atoms in the sample


  4. Prosimiansthe first primate ancestor; also, a group of living primates that includes lorises and lemurs, 55 million years ago


  5. Cenozoic Erathe 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


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