Evolution

Which of these is not a homonid ancestor of modern humans?

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

When a species can not adapt fast enough to its changing environment.

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

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

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

This transitional fossil provided the "missing link" between sea and land animals.

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

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

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

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

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

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

When species change over a long period of time

The evidence for the theory of evolution does not include:

This is drawn to show the evolutionary relationship between animals

Where Darwin began work on his theory of evolution.

Darwin studied all of these subjects except:

How old is the earth?

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

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

Which of the following animals is not a vertebrate?

An inherited trait that helps an organism survive.

An extinct species that linked reptiles to birds in the fossil record.

Which species has the most recent common ancestor with humans?