lab 11

Question 1

dermal bramchiae function

Answer 1

excretory and respiratory

Question 2

what are epidermal bumps on asteroidea called

Answer 2

dermal branchiae

Question 3

2 or 3 valve pincers called

Answer 3

pedicellaria

Question 4

pedicellaria function

Answer 4

capture prey, defence, fowling(live off)

Question 5

opening on top asteroidea name

Answer 5

madreporite

Question 6

madreporite function

Answer 6

allow water to flow into water vascular sywstem

Question 7

what are the grooves on the arms called

Answer 7

ambulacral grooves

Question 8

ambulacral grooves function

Answer 8

move stuff mouth to mouth

Question 9

tube feet function

Answer 9

they have suckers on them, movement

Question 10

water vascular system

Answer 10

set of tubes, functions as hydrostatic skeleton, movement

Question 11

stone canal

Answer 11

connects madreporite and ring canal

Question 12

ring canal

Answer 12

moves mwater to radial canals in armsr

Question 13

vessicles on ring canal

Answer 13

polian vessicles

Question 14

polian vessicles

Answer 14

dead ends, maintain pressure for hydrostatic shit

Question 15

radial canals

Answer 15

goes into arms, flow to lateral canals

Question 16

lateral canals

Answer 16

attached to ampullae

Question 17

ampullae

Answer 17

attached to tube feet, let tube feet extend

Question 18

what are the protective plates called

Answer 18

ossicles

Question 19

ossicles

Answer 19

preotect nerves

Question 20

does holothuroidea have tentacles

Answer 20

yes

Question 21

what do appendages of crinoidea have

Answer 21

cirri, and arms that have pinnules

Question 22

what are pinnules

Answer 22

tubular extensions lining arms, like tube feet w/o suckers

Question 23

wjat dpes class asteroidea use for feeding and defence

Answer 23

pedicellaria

Question 24

class ophiroidea body form

Answer 24

hihgly branched

Question 25

class echinoidea aristotles lantern

Answer 25

feeding apparatus, pushes the teeth out