Echinoderm

Question 1

Endoskeleton

Answer 1

internal skeleton

Question 2

Pedicellariae

Answer 2

A defensive organ

Question 3

Madreporite

Answer 3

A plate where seawater enters into the vascular system

Question 4

Radial canal

Answer 4

part of the water vascular system

Question 5

Ring canal

Answer 5

links canals

Question 6

Arm / Ray

Answer 6

A limb on an organism (starfish)

Question 7

Radial Symmetry

Answer 7

parts arranged around a single axis

Question 8

Bilateral Symmetry

Answer 8

equal halves

Question 9

Water Vascular System

Answer 9

food and waste system

Question 10

Ambulacral Groove

Answer 10

spines

Question 11

Ossicles

Answer 11

small bones

Question 12

Pyloric Caecum

Answer 12

tube opening to a canal

Question 13

Cardiac Stomach

Answer 13

digestion stomach

Question 14

Ampullae

Answer 14

end of a vessle

Question 15

Gonads

Answer 15

sec cells

Question 16

Central Disc

Answer 16

where the arms radiate from

Question 17

Tube Feet

Answer 17

used for grasping food and moving

Question 18

External Fertilization

Answer 18

male fertilizing the female egg outside her body

Question 19

Regeneration

Answer 19

renewal and restoration

Question 20

Brittle star

Answer 20

Have five skinny arms and can reach up to 60 cm in length

Question 21

Sea urchin

Answer 21

950 species are found, 3 to 10 cm across

Question 22

Sand dollar

Answer 22

also known as sea biscuits

Question 23

Sea lilies

Answer 23

live in both shallow and deep waters

Question 24

Feather stars

Answer 24

they can move my moving their arms

Question 25

Sea cucumbers

Answer 25

spits its guts out when feeling attacked

Question 26

Sea daisies

Answer 26

found in the deep sea