Ch. 9 Test review

Who hypothesized that species change over time & become better adapted to new conditions?

The development of different shaped/sized beaks suited to the type of food a bird eats is:

A new species can form when part of a group is isolated for a long enough period of time:

Today, most scientists think that evolution always occurs slowly / gradually.

Which is not a factor Darwin identified as affecting the process of natural selection?

Scientists compare organisms _____ to see how closely related two species are.

Which statement could explain the trend in the graph?

Which statement explains why one of the species is more likely to survive environmental change?

A group of organisms that can mate with each other and produce fertile offspring is called:

Which statement explains why the number of dark-colored moths in the population increased?

What Islands did Darwin visit and make observations that lead to his theory?

The fossil record provides clues about how/when a new species evolved & how things are related.

The image shown is an ex. of which type of evidence used to support the theory of evolution?

The preserved remains or traces of an organism that lived in the past.

The process of change over time is called:

A trait that increases an organism's ability to survive and reproduce is called:

Changes in the environment do not lead to / cause natural selection.

Which population is most likely to recover from a drastic environmental change?

When organisms with desired characteristics are bred, this is called:

Which of the following is not one of the factors Darwin identified as affecting the process of natural selection?

Which population would have the greatest chance of surviving a significant change in climate?

The 2 patterns of inheritance that describe the pace of evolution are:

Process where those better adapted to the environment are more likely to survive & reproduce

The image show is an example of which type of evidence used to support the theory of evolution?

Any difference between individuals of the same species is called:

Which statement explains why more dark colored fish were found after the water became cloudy?

Scientists have identified roughly ______ species on Earth.

Which of the following is not a type of evidence used to support the theory of evolution?

A creation of labradoodles is an example of:

According to Darwin, over time helpful variations may accumulate in a species & _______.

Darwin made many of his observations and began to develop his theory while visiting:

Similar structures that related species have inherited from a common ancestor are called: