Brief History of Earth (evolution)

Which of the following describes Era?

• long periods of time

• our current era

• short periods of time

• timeline of earth's geologic and life history

Which best describes the Precambrian era?

• age of humans; our current era

• age of bacteria and first animals

• age of fish, land plants, amphibians, and early reptiles

• age of dinosaurs

Which best describes the Paleozoic era?

• age of humans; our current era

• age of bacteria and first animals

• age of fish, land plants, amphibians, and early reptiles

• age of dinosaurs

Which best describes the Mesozoic era?

• age of humans; our current era

• age of bacteria and first animals

• age of fish, land plants, amphibians, and early reptiles

• age of dinosaurs

Which best describes the Cenozoic era?

• age of humans; our current era

• age of bacteria and first animals

• age of fish, land plants, amphibians, and early reptiles

• age of dinosaurs

Which of the following describes Spontaneous Generation?

• living organisms come from pre-existing living organisms

• living organisms can come from non-living sources

• the mitochondria and chloroplast were believed to be prokaryotic cells that were engulfed by larger prokaryotic cells

• a period where many complex, multicellular organisms evolved, increasing diversity of life on Earth

Which of the following describes Biogenesis?

• living organisms come from pre-existing living organisms

• living organisms can come from non-living sources

• the mitochondria and chloroplast were believed to be prokaryotic cells that were engulfed by larger prokaryotic cells

• a period where many complex, multicellular organisms evolved, increasing diversity of life on Earth

Which of the following describes the Endosymbiosis Theory?

• living organisms come from pre-existing living organisms

• living organisms can come from non-living sources

• the mitochondria and chloroplast were believed to be prokaryotic cells that were engulfed by larger prokaryotic cells

• a period where many complex, multicellular organisms evolved, increasing diversity of life on Earth

Which of the following describes the Cambrian Explosion?

• living organisms come from pre-existing living organisms

• living organisms can come from non-living sources

• the mitochondria and chloroplast were believed to be prokaryotic cells that were engulfed by larger prokaryotic cells

• a period where many complex, multicellular organisms evolved, increasing diversity of life on Earth

Which era was characterized by bacteria?

• Cenozoic

• Mesozoic

• Paleozoic

• Precambrian