lab 6

Question 1

shell

Answer 1

protective structure grown organically or some shit

Question 2

oldest part of shell

Answer 2

apex

Question 3

gastropoda example

Answer 3

snails
cornu

Question 4

mantle

Answer 4

enclosure for structures

Question 5

outerlayer of shell

Answer 5

periostracum

Question 6

how many tentacles

Answer 6

2

Question 7

where are eyes

Answer 7

tips of tentacles

Question 8

pneumostome

Answer 8

small hole near mantle
allows inside of shell to interact w outside

Question 9

foot

Answer 9

big muscle

Question 10

mantle cavity

Answer 10

cavity w mantle that holds shit

Question 11

radula

Answer 11

cheese grator–> rows of teeth for feeding

Question 12

dart sac

Answer 12

secretes hormones for sperm survival

Question 13

sex of cronu

Answer 13

hermaphrodites

Question 14

siphon

Answer 14

water flow

Question 15

ctenidium
how many?

Answer 15

respiratory structure
1

Question 16

anus location

Answer 16

anterior end

Question 17

mercenaria
what is present?

Answer 17

bivalve
periostracum

Question 18

umbo

Answer 18

oldest pt of mercenaria shell

Question 19

hinge ligament

Answer 19

holds stuff together

Question 20

how does shell grow(bivalve)? what indicates this

Answer 20

concentric ridges reveal it grows outwards

Question 21

anterior and posteriod adductor muscle scars

Answer 21

where muscles attach to shell

Question 22

hinge teeth

Answer 22

keep shell slightly open

Question 23

pallial line

Answer 23

line for mantle attachment

Question 24

what siphon attaches to shell

Answer 24

pallial sinus

Question 25

what hold shell tgthr

Answer 25

anterior and posterior adductor muscles

Question 26

what muscles move foot

Answer 26

anterior and posterior pedal retractor muscles

Question 27

what takes in or moves out particles?

Answer 27

inhalent and exhalent siphons

Question 27

labial palp

Answer 27

helps sort inhaled material

Question 28

how many ctenidia in bivalve

Answer 28

2 sheet

Question 29

how many demibranch per ctenidia bivalve

Answer 29

2

Question 30

coelom in bivalve

Answer 30

pericardial coelom reduced, open circ system

Question 31

mytilus

Answer 31

all the cilia shit bivalve, marine mussel filibranch bivalve

Question 32

frontal cilia

Answer 32

move food to food groove

Question 33

laterofronal cilia

Answer 33

move particles to frontal cilia

Question 34

lateral cilia

Answer 34

create water flow

Question 35

polyplacophora

Answer 35

hella shell plates hella ctenidia

Question 36

opithobranch

Answer 36

"after heart" no shell sea slug bilarteral symmetry

Question 37

pulmonates

Answer 37

class gastropoda0 dont have shells for gas exchange and mobility --> land fuckers

Question 38

paleotaxodonta

Answer 38

bivalve have hinged teeth

Question 39

pteriomorphia

Answer 39

bivalve mussel

Question 40

heterodonta

Answer 40

have eulamellibranch gills bivalve