Evolution

Darwin observed differences in the shape of these in finches depending on their food source.

The anatomy of whale fins, human arms and bird wings are an example of:

Genetic variation, adaptation, and isolation in a population can lead to a new________

How old is the earth?

Which species has the most recent common ancestor with humans?

Origin of the Species was a book written by a naturalist named

A whale's pelvis is an example of a _________ structure; it is no longer needed for survival.

An inherited trait that helps an organism survive.

When individuals of 2 populations can no longer interbreed, the 2 populations are said to be:

In order for there to be variation in a species, this must randomly occur:

Situation that results when an animal species has died out completely.

Body parts in 2 different animals are analogous, if they are: 

The evidence for the theory of evolution does not include:

Lakes, hills or rivers can cause populations to be separated.  This is an example of: 

The Tiktaalik fossil provides evidence for the theory that all land animals had a ____ ancestor

An adaptation improves the chances of: 

When organisms with the best adaptations for their environment survive and have offspring. 

A modern source of evidence for evolution comes from something Darwin never knew about.

Which of the following are types of evidence that support evolution? 

Natural______ has taken place when white bugs are eaten more often than brown camouflaged bugs.

When using the phrase "survival of the fittest" to describe evolution, "fittest" means:

When species change over a long period of time

Where Darwin began work on his theory of evolution.

Darwin studied all of these subjects except:

Random __________ in genes can lead to favorable adaptations in a species.

The change that results in a species being better suited to its environment is known as: