Evidence of Evolution

What is the definition of Evolution?

• Change in a species over time

• A type of fossil

• A process by which animals hide

What does a Fossil represent?

• A living organism's DNA

• Any trace or remains of an organism that lived long ago

• A modern animal

What is Comparative Embryology?

• Study of animal behavior

• Comparison of embryo development to show common ancestry

• Comparison of DNA sequences

What are Homologous Structures?

• Bones in a fossil

• Having the similar body structures but used for different functions

• Structures with no use

What defines an Analogous Structure?

• Having different body structures although used for the same function

• A structure that is extinct

• A structure found in fossils

What is a Vestigial Structure?

• A structure that aids in survival

• Remnants of ancient ancestors that have little to no function

• A structure used for camouflage

What does the Fossil Record consist of?

• Chronological collection of life's remains in sedimentary rock layers

• A list of living species

• DNA comparisons

What is Natural Selection?

• Choosing pets based on color

• The process of evolution by which forms of life that are better adapted to their specific environment survive and reproduce more often than those that are less well adapted

• A random selection of traits

What does Adaptation refer to?

• A change over time in a plant, animal or other organism that makes it better fit for its environment and better able to survive

• The ability to remain unchanged

• A fossil's age

What is the purpose of Camouflage?

• To attract predators

• To blend in or hide by making something hard to see

• To increase an organism's size