Evolution Definitions & Whale Evolution

Question 1

A _______ is a marine mammal such as a dolphin or whale

Answer 1

cetacean

Question 2

A _______ is a relative from a long period of time ago.

Answer 2

ancestor

Question 3

To ______ means to get used to something

Answer 3

adapt

Question 4

_______ are layers of rock.

Answer 4

Sediments

Question 5

________ is a division of whale which includes the baleen whale.

Answer 5

Mysticetes

Question 6

a _________ is a toothed whale.

Answer 6

Odontecetes

Question 7

What is the first evolved state of a whale?

Answer 7

Pacicetus

Question 8

When did the Pakicetus live?

Answer 8

50 million years ago

Question 9

Where did the Pakicetus live?

Answer 9

Pakistan

Question 10

True or False • the Pakicetus was a carnivore.

Answer 10

True

Question 11

What was the size of a Pakicetus’ skull?

Answer 11

a coyote

Question 12

The Pakicetus evolved into what creature?

Answer 12

The Ambulocetus natans

Question 13

True or False • Ambulocetus natans’ had special fat packs in their nose.

Answer 13

False

They had fat packs, but they were located in their ears.

Question 14

Where did the Ambulocetus natans live?

Answer 14

Pakistan

Question 15

When did the Ambulocetus natans live?

Answer 15

49 million years ago

Question 16

What was the third evolutionary step in whales?

Answer 16

Rhodocetus

Question 17

True or False • The Rhodocetus was slow-moving.

Answer 17

False

They were very agile.

Question 18

Where did the Rhodocetus stay full-time?

Answer 18

The ocean

Question 19

When did the Rhodocetus live?

Answer 19

46 million years ago

Question 20

Where did the Rhodocetus live?

Answer 20

Pakistan

Question 21

True or False • The Basilocetus was the first whale to live in Egypt.

Answer 21

True

Question 22

What type of carcass was found in the Basilocetus?

Answer 22

Shark carcasses

Question 23

Did the Basilocetus have better or worse eyesight?

Answer 23

Better

Question 24

When did the Basilocetus live?

Answer 24

39 million years ago

Question 25

The _______ resembled a dolphin.

Answer 25

Duradon

Question 26

True or False • They were found individually

Answer 26

False

They were found in groups.

Question 27

Where did the Duradon live?

Answer 27

Egypt

Question 28

These three whale ancestors lived 24 to 5 million years ago

Answer 28

Cetoheres, Kentriodontids, Delphinoids

Question 29

Where were the Cetoheres, Kentriodontids, and Delphinoids whales found?

Answer 29

Sharktooth Hill