lab 3

Question 1

what classes are in phylum cnidaria

Answer 1

hydrozoa
scyphozoa
anthozoa

Question 2

what are some organisms in class hydrozoa

Answer 2

hydras
obelias
siphonophores
hydrocorals

Question 3

what is a hydra

Answer 3

athecate hydroidw

Question 4

what is a obelia

Answer 4

thecate hydroid

Question 5

what organism is in class scyphozoa

Answer 5

aurelia

Question 6

what subclasses are in class anthozoa

Answer 6

hexacorallia
octocorallia

Question 7

what organisms in subc hexacorallia

Answer 7

anemones
stony corals

Question 8

what organisms in subc octocorralia

Answer 8

sea pens and gorgonian sea fans

Question 9

what is the hypostome

Answer 9

cone shaped structure around mouth

Question 10

tentacles of hydrozoa

Answer 10

feeding, have nematocystsba

Question 11

basal disc

Answer 11

attach to substrate

Question 12

hydrozoa what body forms

Answer 12

polyp and medusa

Question 13

cnidocyte

Answer 13

defensive cell

Question 14

cnidae

Answer 14

fire needle

Question 15

nematocyst

Answer 15

type of cnidae

Question 16

epithelio muscular cells

Answer 16

produce adhesive vesicles that attach to shit

Question 17

what is gestrodermis

Answer 17

inside layer

Question 18

velum

Answer 18

used for jet propulsion in hydrozoa medusa

Question 19

manubrium

Answer 19

feeding tube near mouth

Question 20

radial canals

Answer 20

contract to push water out

Question 21

mesoglea

Answer 21

gelatinous middle layer

Question 22

what does obelia have thats fuckin weird

Answer 22

gastrozooid and gonozoid

Question 23

gastrozoid

Answer 23

polyp tentacles, feeding

Question 24

gonozoid

Answer 24

polyp tentacles, reproductive

Question 25

mouth lobe

Answer 25

cover manubrium in scyphozoa, bring in food

Question 26

gastric pouches

Answer 26

contain gonads

Question 27

radial canals

Answer 27

branched, alsmost like veins

Question 28

mesogloea

Answer 28

function as hydrostatic skeleton in scyphozoa

Question 29

rhopalia

Answer 29

light sensing organs

Question 30

life cycle scyphozoa

Answer 30

planula larva--> scyphistoma(polyp stage) --> strobula--> ephyra

Question 31

ephyra

Answer 31

medusa, can grow into individual

Question 32

strobulation

Answer 32

form stacks of pankakes which are budding ephyra

Question 33

pedal disc

Answer 33

anthozoa basal disc

Question 34

septa

Answer 34

extra sirface area, have gonads

Question 35

siphonoglyphs

Answer 35

slits in pharynx, moves water and food down

Question 36

acontia

Answer 36

stick outside body for feeding and defense, have nematocytsts

Question 37

gastrovascular cavity

Answer 37

digestion

Question 38

pharynx

Answer 38

tube leading to gastrovascular cavity

Question 39

what is wild bout phylum ctenophora

Answer 39

they have comb rows

Question 40

comb rows

Answer 40

for feeding instead of oral arms, not real tentacles but are ciliated arms