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6 Written questions

6 Multiple choice questions

  1. a species of hominid that lived in Europe and Western Asia from 230,000 years ago to about 30,000 years ago
  2. determining whether an event or object, such as a fossil, is older or younger than other events or objects
  3. mass extinction of most of a species
  4. a cell that does not have a nucleus or any other membrane-covered organelles; also called a bacterium
  5. 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
  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. Prosimiansthe first primate ancestor; also, a group of living primates that includes lorises and lemurs, 55 million years ago

          

  2. 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

          

  3. 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.

          

  4. 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.

          

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

          

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