Chapter 2 - Understanding Evolution and Physiology

Question 1

Deuterostomes

Answer 1

Second-mouth (first-anus)

Question 2

Protostomes

Answer 2

First-mouth

Question 3

Mass Extinction

Answer 3

Lack of O2

Question 4

Embryology Development

Answer 4

Zygote -> Morula -> Blastocyst -> Gastrula

Question 5

Acoelomate (flatworm)

Answer 5

Lack a coelom

Question 6

Pseudocoelomate (nematode)

Answer 6

Coelom appears between endoderm and mesoderm

Question 7

Coelomate (annelid)

Answer 7

Coelom appears between two mesodermal layers

Question 8

Mesentariess

Answer 8

Attach intestines to abdominal walls, preventing collapse

Question 9

Ectoderm

Answer 9

Skin, brain, spinal cord, hair, nails

Question 10

Endoderm

Answer 10

Digestive and respiratory tubes, the interior linings of two tubes in the body

Question 11

Mesoderm

Answer 11

Skeletal, muscles, cartilage, glands, heart

Question 12

Synapsid

Answer 12

One hole skull, mammalia

Question 13

Diapsid

Answer 13

Two hole skull, birds/crocodillian