Chordata and Echinodermata

Question 1

Echinodermata Movement

Answer 1

Sessile or Slow moving

Question 2

Eye Spots

Answer 2

Tip of Rays

Question 3

Echinodermata Digestion

Answer 3

Complete

Question 4

Echinodermata Support

Answer 4

Endoskeleton - Calcium Carbonate

Question 5

Echinodermata Reproduction

Answer 5

External

Question 6

Class Holothuroidea Example

Answer 6

Sea Cucumbers

Question 7

Class Asteroidea Example

Answer 7

Sea Stars

Question 8

Echinodermata Symmetry

Answer 8

Radial

Question 9

Echinodermata Circulatory System

Answer 9

Open

Question 10

Water Vascular System

Answer 10

How sea stars get around

Question 11

Class Ophiuroidea Example

Answer 11

Brittle Star

Question 12

Regenerative Properties

Answer 12

They can regrow limbs

Question 13

Class Echinoidea Example

Answer 13

Sea Urchins, Sand Dollars

Question 14

Pharyngeal Slits

Answer 14

develop into gills and eventually elements of the head, jaw, and ears

Question 15

Optic Nerve

Answer 15

Part of the chordates nervous system

Question 16

Chordates Digestion

Answer 16

Complete

Question 16

Pumps blood in chordates

Answer 16

Heart

Question 17

Dorsal Hollow Nerve Cord

Answer 17

develops into the central nervous system: the brain and the spinal cord

Question 18

Notochord

Answer 18

Becomes cartilage dies between the vertebrae

Question 19

Function of Dorsal Fins

Answer 19

Increase Lateral Surface Drag

Question 20

Function of the Pelvic Fins

Answer 20

Balance

Question 21

Chordates Symmetry

Answer 21

Bilateral

Question 22

Function of the pectoral Fins

Answer 22

Steer and control depth

Question 23

Function of the Caudal Fins

Answer 23

Power

Question 24

Class of Chordates that lack paired fins

Answer 24

Agnatha

Question 25

Class of Chordates that have pseudoteeth

Answer 25

Agnatha

Question 26

Class of Chordates that lack Jaws

Answer 26

Agnatha

Question 27

Example Hagfish

Answer 27

Agnatha

Question 28

Class of Chordates that are composed of cartilage

Answer 28

Chondrichthyes

Question 29

Class of Chordates that have their mouth located on their ventral side

Answer 29

Chondrichthyes

Question 30

Class of Chordates that are made of cartilage and have moveable jaws

Answer 30

Chondrichthyes

Question 31

Class of Chordates that have skin covered by minute denticles

Answer 31

Chondrichthyes

Question 32

Class of Chordates that skeleton is made of bone

Answer 32

Osteichthyes

Question 33

Class of Chordates that have gills covered by operculum

Answer 33

Osteichthyes

Question 34

Class of Chordates that have their mouth terminally located

Answer 34

Osteichthyes

Question 35

Class of Chordates that have scales made of bone

Answer 35

Osteichthyes