Evolution Review

What are the evidences of evolution that can tell scientists that animals share a common ancestor?

• Homologous structures

• Similar DNA sequences

• Embryological homologies

• All of the above

A trait that increases an organism's chance of obtaining resources and reproduction is called a(n) -

• Homologous structure

• Mutation

• Adaptation

• Vestigial structure

What best describes a vestigial structure?

• Body parts that are similar in structure, but may be different in function

• Body parts that are similar in function, but have different structures

• A trait inherited from a common ancestor

• Body part that is reduced in size, because it no longer serves an important function

What can scientists look for in fossils to determine if organisms are related

• The animals behavior

• The animals body structures

• The animals exact age

• The animals skin color

What best describes a homologous structure?

• Body structures that serve the same function, but have different structures

• Body body that have the same structural layout, but may serve different functions

• Body parts that no longer serve an important function

• Body parts that aid in organisms survival in it's environment

Which type of selection is pictured here?

• Stabilizing selection

• Disruptive selection

• Directional selection

• Artificial selection

The type of selection picture here is -

• Directional Selection

• Disruptive selection

• Stabilizing Selection

• Artificial selection

Which of these graphs shows a directional selection on a population?

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• 
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A species is defined as -

• Animals that share a common ancestor

• Animals that share the same environment

• Animals that are members of the same population

• Animals that can breed with one another and produce fertile offspring

What will happen to individuals not well adapted to their environment?

• They will pass on these traits to a large number of offspring.

• The will beat out their competition so that they are well adapted,

• They will either die or be forced to move

• They will be forced to adapt to survive