mission 2 fossils: rocking the earth\nintroductory video: fossils provide us with a historical record of…

mission 2 fossils: rocking the earth\nintroductory video: fossils provide us with a historical record of life on earth. there are many types of fossils, from extraordinary unaltered remains trapped in permafrost or amber, to subtle traces of past activities in the form of footprints and burrows. the fossils that we have found provide windows into the past and direct evidence of evolution. before you start the first level in this mission, \eating dinosaurs for dinner,\ watch the introductory video and answer questions 1 - 2 below.\n1. if these rock layers have been undisturbed, which layer is the oldest? which layer is the youngest? mark your answer on the figure.\n2. according to the video, fossils provide each of the following except:\na. examples of transitional species\nb. a complete record of past life on earth\nc. physical proof of extinction and speciation\nd. evidence that evolutionary change tends to be gradual

mission 2 fossils: rocking the earth\nintroductory video: fossils provide us with a historical record of life on earth. there are many types of fossils, from extraordinary unaltered remains trapped in permafrost or amber, to subtle traces of past activities in the form of footprints and burrows. the fossils that we have found provide windows into the past and direct evidence of evolution. before you start the first level in this mission, \eating dinosaurs for dinner,\ watch the introductory video and answer questions 1 - 2 below.\n1. if these rock layers have been undisturbed, which layer is the oldest? which layer is the youngest? mark your answer on the figure.\n2. according to the video, fossils provide each of the following except:\na. examples of transitional species\nb. a complete record of past life on earth\nc. physical proof of extinction and speciation\nd. evidence that evolutionary change tends to be gradual

Answer

Brief Explanations:

  1. In undisturbed rock - layers, the principle of superposition states that the lower layers are older and the upper layers are younger.
  2. Fossils do not provide a complete record of past life on Earth because many organisms did not fossilize, and some fossils have been destroyed over time.

Answer:

  1. The bottom - most layer is the oldest and the top - most layer is the youngest (but cannot mark on the figure here).
  2. B. A complete record of past life on Earth