Exam 2

Question 1

What is a Cleavage?

Answer 1

Orderly sequence of cell divisions of the fertilized eggs by mitosis.

Question 2

What is the process of orderly sequence of cell divisions of the fertilized eggs by mitosis

Answer 2

Cleavage

Question 3

What is a blastula?

Answer 3

Single layer cells of hollow, fluid filled balls of cells.

Question 4

What is a single layer cell of hollow fluid filler balls of cells.

Answer 4

Blastula

Question 5

What is a Blastocoel?

Answer 5

The cavity of the blastula?

Question 6

What is the cavity of the blastula called?

Answer 6

Blastocoel.

Question 7

What is a radial cleavage?

Answer 7

The stacking position of 8+ cells straight up.

Question 8

Cell stacked straight up is called?

Answer 8

Radial Cleavage

Question 9

What is a spiral cleavage?

Answer 9

The Stacking position of 8+cell between each other.

Question 10

Cells stacked in-between each other?

Answer 10

Spiral Cleavage

Question 11

What stage do sponges reach?

Answer 11

Blastula Stage

Question 12

The blastula stage is the ending stage for which group.

Answer 12

Sponges

Question 13

How are animal development categories?

Answer 13

-Cleavage and Number of Tissue Layer

Question 14

Sponges have how many tissue layers.

Answer 14

Zero

Question 15

Which animal has no tissue layer?

Answer 15

Sponges

Question 16

Phylum Cnidaria has how many tissue layer?

Answer 16

Two

Question 17

Which Phylum only has two tissue layers?

Answer 17

Phylum Cnidaria

Question 18

What is a diploblastic.

Answer 18

A two tissue layer.

Question 19

A blastula gets pushed in to make a ____.

Answer 19

Gastrula.

Question 20

A gastrula contains_____.

Answer 20

Ectoderm, endoderm, blastopore, blastocoel, gastrocoel

Question 21

What is a triploblastic?

Answer 21

A three layer tissue layer.

Question 22

What are the types of tissue of a triploblastic.

Answer 22

Mesoderm, endoderm, ectoderm

Question 23

The endoderm give rise to the ____.

Answer 23

Mesoderm

Question 24

Where does the mesoderm come from?

Answer 24

The endoderm.

Question 25

What forms from the mesoderm?

Answer 25

Heart, lung, bones, muscles

Question 26

Where do the heart, lung, bone and muscle come from?

Answer 26

Mesoderm

Question 27

What form from the ectoderm?

Answer 27

Skin, Nervous system, eyes

Question 28

Where do skin, nervous system and eye form from?

Answer 28

Ectoderm

Question 29

What forms from the endoderm?

Answer 29

Digestive system, liver, gallbladder.

Question 30

Where do the digestive system, liver and gallbladder form from?

Answer 30

Endoderm

Question 31

What cleavage pattern does protostomes have?

Answer 31

Spiral Cleavage.

Question 32

Which phylum is a protostomia?

Answer 32

Phylum Playthelminthes, annelida, arthropodo, mollusca.

Question 33

What are the fate of the cell of a protostome?

Answer 33

Determinate cleavage

Question 34

What is a determinate cleavage?

Answer 34

Cells fate became determined very early.

Question 35

What is the fate of the blastopore of the protostomes?

Answer 35

The blastopore becomes the mouth.

Question 36

Which clades blastopore gives rise to a mouth?

Answer 36

Protostomia

Question 37

Which clades blastopore gives rise to an anus?

Answer 37

Deuterostomes