Natural Selection/ Evidence for Evolution

A change in the inherited characteristics of an organism over time is ________

• evolution.
• development.
• growth.
• ancestry.

How does embryology support the Theory of Evolution?

• It shows that they have a common ancestor because of their similarities.
•          I'm not sure.
• Animals change over time. 

The most recent ancestral form or species from which two different species evolved is known as ________________________.

• a common ancestor.
• an embryonic stage.
• development.
• evolution.

Which scientist visited the Galapagos Islands and came up with the theory of natural selection?

• Theodor Schwann

• Gregor Mendel

• Charles Darwin

• Rudolf Virchow

What type of evidence is represented in the picture above:

• Fossils

• Vestigial Structures

• DNA

• Homologous Structures

The diagram shows fossils in different rock layers. Which of these statements about the age of these fossils is most likely correct?

• Fossil A and C are the same age
  
• Fossil B is older than fossil C
• Fossils A is older than fossil B
• Fossil D is older than fossil C

_____________________are features present in modern organisms which are no longer in use.

• DNA

• Vestigial structures

• Fossils

• Homologous structures

The earliest organisms were ___________; the more recent organisms are ____________.

• simple; more complex

• complex; more simple

Changes in species that allow that species to survive changes in the environment are called:

• ecosystems
• adaptations
• biomes
• alleles

Two organisms that are closely related would have

• very similar DNA sequence
• exactly the same DNA sequences
• no proteins in common
• completely different DNA sequence