Ch. 17 & 20 Darwin and the History of Life

Two species of fish are introduced to a lake, but only one survives. What should characterize the surviving species?

Fossils are most often found in _________________.

A scientist would use the half-life of a radioactive element to determine a fossil's _____________.

The evolution of species at a slow, relatively constant rate is called __________.

Which of the following would be the least likely to form a fossil?

Trilobite fossils are found in only a few rock layers, so they are useful ___________.

Similar characteristics in species that are due to convergent evolution are ___________.

_______ says that species undergo long periods of little change with short periods of speciation.

The glyptodont fossils and living armadillos that Darwin observed are related to which pattern of biodiversity?

During the process of natural selection, what determines which organisms survive and reproduce?

Which of the following is the largest division on the geologic time scale?

Darwin's theory of evolution offers a scientific explanation for which of the following?

Intermediate fossil forms are important evidence of evolution because they show _____________.

Which scientist believed that the geologic processes today were the same as those that shaped Earth?

What process most likely accounts for the diversity of finch species on the Galapagos islands?

The Miller-Urey experiment demonstrated that the atmosphere of early Earth could support the development of ___________.

The wing of a bat and the wing of a bee, which do not come from a common ancestor, are examples of _________.

Evolution by punctuated equilibrium is characterized by _____________.

Mass extinctions that occurred in the past _____________.

When would it make the most sense for a scientist to use carbon dating for a fossil?

A variety of bear species evolved from a common bear ancestor. This pattern of evolution is an example of ___________.

In addition to observing living organisms, Darwin studied the preserved remains of ancient organisms called ________.

The origin of the eukaryotic cell is explained by ___________.

Which of the following would a breeder use to increase the number of cows that give the most milk?

In convergent evolution, similar traits develop in two species that are ___________.

Earth's early atmosphere contained _______________.

The forelimbs of frogs and alligators share many similarities which came from a common ancestor and are considered ____.

____________ is used to determine the absolute age of fossils.