Gastropods
This is an example of a gastropod
What are Snails, whelks, slugs and most single-shelled mollusks?
bivalves lack this compared to other mollusks
What is a head
What is by having little to no shell?
Nautilus lack these on their tentacles, instead using grooves + ridges
What are suckers?
This is the typical life span of both
What is about 1 year?
What is a simple kidney called?
What is nephridium?
mantle bag acts as this in bivalves
What is a pump?
Specialized foot that enables them to jet through the water
What is siphon?
This is how squid differ from cuttlefish and octopi
What is their streamlined, torpedo-shaped body
Trap door that protects gastropod that withdrawals into shell
What is operculum?
Pearls are made of these special calcium carbonate layers
What is nacre?
pigment sacs in skin cells that allow them to change colors
What is a chromatophore?
Cuttlefish control their buoyancy by the ratio of these in their shell
What is liquid:air?
special trait of squids compared to other cephalopods
What are 2 opposing tentacles that are longer than the other 8?
Subset of gastropods that lack a shell and protect themselves with toxins
What is nudibranchs?
the 2 powerful muscles bivalves can use to pull their shells tight together
What are adductor muscles?
black ink in sac to obscure enemy's vision
What is sepia?
Test of toddlers that shows cuttlefish have evolved self-control
What is the marshmallow test?
This is the heart that pumps blood exclusively to the gills and how many there are
What is branchial heart and 2?
unique organs that can incorporate nematocysts from undigested prey
What are cerata?
This is why pearls form
what is an irritant or sand gets trapped inside and bivalve protects itself with layers of calcium carbonate?
predators have this to tear at prey (be specific)
What is parrot-like beak?
This is the reason it is so remarkable that cuttlefish developed self-control
What is because they are solitary instead of social creatures?
Blood is this element based, rather than iron like in our blood, making their blood this color
What is copper and blue?