lab 8

Question 1

first segment

Answer 1

prostomium

Question 2

second segment

Answer 2

peristomium

Question 3

what does prostomium

Answer 3

first segment, contains sensory shit
where tentacles derive

Question 4

peristomium

Answer 4

second segment of worm, around mouth

Question 5

parapodium

Answer 5

locomotion appendages

Question 6

acicula

Answer 6

dark skeletal rods that operate parapodia

Question 7

what are the parts of the parapodium

Answer 7

the top part is the notopodium
bottom part is neuropodium

Question 8

septa

Answer 8

internal divisions, give independent movement to sections and attaches shit to wall

Question 9

circular muscles

Answer 9

maintain pressure in ceolum for hydrostatic skeleton
not much movement

Question 10

dorsal longitudinal muscles

Answer 10

change shape of segment to create the ‘wave’ for movement

Question 11

ventral longitudinal muscles

Answer 11

change shape of segment

Question 12

what do oblique muscles do?

Answer 12

help move out and keep pressure

Question 13

dorsal blood vessel

Answer 13

moves blood towards head

Question 14

ventral blood vessel

Answer 14

moved blood away from head

Question 15

reproductive structure in lumbricus

Answer 15

clittellum

Question 16

clittellum

Answer 16

secretes mucus after copulation–> creates egg cocoon

Question 17

what exceretes fluid in lumbricus

Answer 17

coelomic pores

Question 18

coelomic pores

Answer 18

excrete fluid that keeps worm moist and kills bacteria

Question 19

caclciferous glands

Answer 19

storage for calcium

Question 20

gizzard

Answer 20

meachanical breakdown

Question 21

seminal receptacles

Answer 21

stores sperm from other worm

Question 22

how do lumbricus move?

Answer 22

circular muscles close in while longitudinal muscles extend

Question 23

what is the fold inside the gut called

Answer 23

typhlosole- lumbricus

Question 24

typhlosole

Answer 24

dorsal flap of intestine, a fold that increases SA for digestion

Question 25

anterior sucker

Answer 25

hirundinea used fir attachment

Question 26

posterior sucker

Answer 26

anus sucker, holding/ moving maybe substrate???????

Question 27

does hirudinea have cut?

Answer 27

yes full gut

Question 28

chaetae

Answer 28

the rod things

Question 29

what is the special tube structure in bryozoa

Answer 29

lophophore

Question 30

what type of segmentation do annelids have

Answer 30

metamerism leeches dont have this

Question 31

metanepheridia

Answer 31

funnels that open to the coelum of the next segment

Question 32

lophophorates defining features

Answer 32

crown of feeding tentacles

Question 33

which lophophore is colonial and which is solitary

Answer 33

Bryozoa- colonial Branchiopoda- solitary

Question 34

what is the special structure of echiurida

Answer 34

proboscis

Question 35

Phylum annelida what is it and its major groups

Answer 35

segmented worms clitellata sipuncula polychaeta

Question 36

subc. in polychaeta

Answer 36

errantia sedentaria

Question 37

groups within sedentaria

Answer 37

siboglinidae echiurida

Question 38

what is the group echiurida

Answer 38

spoon worms

Question 39

groups within clade clitellata

Answer 39

oligochaeta hirudinea

Question 40

what is clade oligochaeta

Answer 40

earthworms LUMBRICUS

Question 41

what is clade hirudinea

Answer 41

leaches

Question 42

what is clade sipuncula

Answer 42

the peanut worms

Question 43

what are the two lophophorate phyla

Answer 43

branchiopoda bryozoa