Bio. Ch. 17 Review - The History of Life

The endosymbiosis theory includes all of the following EXCEPT... 1. Photosynthetic prokaryotes evolved into chloroplasts. 2. Aerobic prokaryotes evolved into mitochondria. 3. Eukaryotic cells arose from the merging of different prokaryotic organisms. 4. All organelles evolved from specialized enfoldings of the plasma membrane.

4. All organelles evolved from specialized enfoldings of the plasma membrane.

Radioactive dating of rock samples is a method of...

Absolute dating

The Cambrian Period is also called the...

Age of Invertebrates

In which geologic era do you live?

Cenozoic

The process that produces a similar appearance among unrelated groups of organisms is...

Convergent evolution

In Miller and Urey's experiments with the origin of life-forms, electric sparks were passed through a mixture of gases to: A. Simulate temperature B. Simulate sunlight C. Sterilize the gases D. Simulate lightning

D. Simulate lightning

Half-life is the length of time required for half the atoms in a radioactive sample to...

Decay

Which of the following is a characteristic of an index fossil? **the answer can be one or more choices** I. Distinctive species II. Lived in a wide geographic range III. Lived for a long period of time

I. and II.

Which of the following is evidence for the endosymbiotic theory? **the answer can be one or more choices** I. Mitochondria and chloroplasts contain DNA similar to bacterial DNA. II. Mitochondria and chloroplasts contain ribosomes that differ from bacterial ribosomes. III. Mitochondria and chloroplasts reproduce by binary fission.

I. and III.

Potassium-40 is useful for dating very old fossils because

It has a very long half-life

As a group, the large-scale evolutionary changes that take place over long periods of time are called...

Macroevolution

Which event occurred at the end of the Paleozoic Era?

Mass extinction

Outlines of ancient cells that are preserved well enough to identify them as prokaryotes are called...

Microfossils

Earths first atmosphere contained little or no

Oxygen

Scientists who specialize in the study of fossils are called...

Paleontologists

Sedimentary rocks form when layers of small particles are compressed...

Under water