Natural selection + GM

• What is natural selection?

  The idea that the fittest survive and pass along their traits to their offspring.
• How do fossils provide evidence for evolution?

  They provide the evidence of the organisms that lived years ago, they can show how much or little organisms have evolved over time.

  Generally, the deeper the fossil is found, the older it is.
• What is the problem with the fossil record?

  There are gaps.
• Who was Charles Darwin?

  Charles Darwin promoted natural selection as the method of evolutionary changes.
• What areas of biology has the theory of evolution affected?

  Classification, Antibiotic Resistence, Conservation
• Describe Lucy

  Description: arched feet, no ape-like big toe, brain was larger than Ardi, but still similar in sized to a chimpanzee's. Walked upright, but more efficiently than Ardi

  Discovered: 3.2 million years ago
• How do stone tools provide evidence for human evolution?

  They have developed over time, becoming sharper, with more complex uses

  Newer, sharper tools were used for arrowheads, fish hooks and needles
• How can fossils and stone tools be dated?

  Carbon dating (if it has carbon), stratigraphy (looking at how deep the object was found), looking at structural features and comparing to already discovered fossils
• What is a pentadactyl limb?

  A limb with five digits
• What are the five kingdoms?

  Plants, Animals, Prokaryotes, Protists, and Fungi
• What are prokaryotes?

  unicellular organisms that lack a nucleus
• What are the three domains?

  Bacteria, Archaea, Eukarya
• What is the eukarya domain?

  organisms that have eukaryotic cells (a true nucleus)

  Ex. plants, animals, protists, fungi
• What is the archaea domain?

  it consists of unicellular organisms with no nucleus.
• What is archaea?


  prokaryotes that often live in Earth's extreme environments
• What is in the domain eukarya?

  -the largest and most morphologically complex organisms on the tree of life

  -includes algae, plants, fungi, and animals
• Describe selective breeding?

  1) from existing stock, select the ones with desirable characteristics

  2) breed them with each other

  3) select the best offspring then breed them together

  4) continue over several generations
• What is biological control?

  The use of a predator or parasite to control a pest species.
• When did Leakey discover "Turkana Boy"?

  1.6 million years ago