Fossil Record Review

1

2

3

4

A, B

A, C

C only

C, D

2 of fossil C and 3 of fossil D

1 of fossil B and 3 of fossil D

2 of fossil B and 2 of fossil D

3 of fossil C and 2 of fossil D

B, C- because they are closest to the top

A, B- because they are closest to the bottom

They are all the same age- because they are all found on layer 2

A, B- because they are found closest to the top

Layer 1

Layer 2

Layer 3

Layer 4

When the ocean levels rose in layer 4, the mollusk went extinct because they cannot live in water

For some reason, the ocean disappeared causing the mollusk to thrive

For some reason, the ocean disappeared causing the mollusk to go extinct

When the ocean level rose in layer 4, the mollusk thrived because they need water

Layer 1-Because that is the layer it is first seen

Layer 1- Because that is the last layer it is seen in

Layer 2- Because that is the layer it is first seen

Layer 2- Because that is the last layer it is seen in

Life started in the ocean and over time organism became to appear with no common ancestors. Fish evolved first, then reptiles, then mammals and finally birds.

Life started in the ocean then slowly evolved through natural selection to life on land. Fish evolved first, then reptiles, then mammals and finally birds.

Life started on land and over time humans began to evolve into fish, then reptiles, and birds.

Life started in the ocean as four-legged amphibians which then evolved to palm trees, then to dinosaurs, and eventually into humans.

Organisms evolved to from land animals to being able to fly

Organisms went from four legs to two

Organisms got fatter

Organisms stayed the same during these periods

They all have evolved through natural selection but do not use these structures anymore.

They all share a common ancestor but have evolved through natural selection

They all share a common ancestor but did not evolve from natural selection