What is the name of the earliest whale ancestor?

• Pakicetus
• Basilosaurus
• Mammalodon

How did Pakicetus adapt to its environment?

• By developing wings
• By evolving to have webbed feet
• By becoming a land animal

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

What process explains how Pakicetus changed over millions of years?

• Natural selection
• Legs
• Genetic Drift

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Why did it take so long for the earliest whales to become fully aquatic?

• They needed to develop better swimming skills
• They evolved from land animals
• They were afraid of the ocean

Tags

NGSS.MS-LS4-4

What evidence supports the claim that whales have evolved from a land animal?

• Their ability to swim fast
• The presence of finger bones
• Their size compared to fish

Tags

NGSS.MS-LS4-2

How does the function of the human arm differ from the function of the whale flipper?

• According to the slides in "Intro. to Evolution-Pakicetus, " the human arm only has 3 types of bones and the whale flipper has 5.
• The human arm is used to walk, run, carry things, etc. and the whale flipper is used for swimming.

Tags

NGSS.MS-LS4-2

Which statement is a claim?

• This evidence means that salt water freezes at a lower temperature than pure water.
• The freezing temperature of salt water is 20 degrees F. The freezing point of pure water is 32 degrees F.
• Salt water will freeze faster than pure water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Which statement is the reasoning?

• This evidence means that salt water freezes at a lower temperature than pure water.
• The freezing temperature of salt water is 20 degrees F. The freezing point of pure water is 32 degrees F.
• Salt water will freeze faster than pure water.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A wolf-sized meat-eater that ate mostly fish.  Fur covered with a head that is becoming whale shaped with sharp teeth.  Had four legs, small ears, and a long tail.

• Mesonychid

• Pakicetus

• Ambulocetus

• Rhodocetus

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

_{Which rock layer in the diagram seems to be the oldest?}

• F
• E
• B
• A

Tags

NGSS.MS-ESS1-4