A.   Landslides

B.   Major events in the planets history like asteroids, natural disasters, climate change, etc.

C.   The exact timing of volcanic eruptions

D.   The formation of islands due to glaciation

A.   Tail develops muscles and flattens.

B.   Becomes more streamlined for less drag when swimming.

C.   All of these

D.   Back legs shorten and widen to act as flippers.

A.   The organ of balance is an organ that has two canals filled with fluid which moves when the head moves. Fluid movements are registered by nerves and signals are sent to the brain that tells it to adjust the body’s balance so it doesn’t fall over.

B.   The organ of balance is an organ that has one canal filled with fluid which moves when the head moves. Fluid movements are registered by nerves and signals are sent to the brain that tells it to adjust the body’s balance so it doesn’t fall over.

C.   The organ of balance is an organ that has three canals filled with fluid which moves when the head moves. Fluid movements are registered by nerves and signals are sent to the brain that tells it to adjust the body’s balance so it doesn’t fall over.

D.   The whiskers on a whale that allow it to sense things in the dark so it can stay in a balanced state and alert from predators.

A.   Dorundontids

B.   Neither

C.   Basilosaurids

D.   Both

A.   400,000 pounds, over 92 feet long

B.   10,000 pounds, over 32 feet long

C.   20,000 pounds, over 35 feet long

D.   100,000 pounds, over 52 feet long

E.   40,000 pounds, over 42 feet long

A.   They head toward colder, polar seas where they can handle the cold water due to their warm bloodedness; cold blooded sharks cannot exist in cold water.

B.   They dive toward the ocean floor where they can handle the cold water due to their warm bloodedness; cold blooded, large sharks cannot dive that deep without freezing.

C.   They head toward equatorial seas where they can handle the warm water due to their warm bloodedness; cold blooded, large sharks cannot exist in warm water as they will overheat.

D.   They form superpods that ambush the Megalodon shark.

A.   Smell

B.   Sonar

C.   By following smaller predators to sources of food

D.   Sight

A.   Size and weight of an African Elephant

B.   Size and weight of an African Lion

C.   Size and weight of a Prius

D.   Size and weight of a Bluefin Tuna