sea-squirt
Sessile marine filter-feeder
A sea-squirt is a sac-shaped marine invertebrate that attaches to rocks, shells, or other underwater surfaces.
It feeds by drawing water through one opening and expelling it through another—the squirting action giving the animal its name.
Despite their blob-like adult form, sea-squirts are surprisingly close relatives of vertebrates, sharing a common ancestor with fish and humans.
Coated marine invertebrate
- siphonLiquid transfer tube
- tunicLoose hip-length top
- notochordEmbryonic axial support structure
- pharynxMuscular throat cavity
gill slits · cellulose · sessile · filter feeder · larva · tadpole stage · atrium · hermaphrodite
Underwater rock or coral formation
- substrateUnderlying supporting material
- rocky shoreCoastline of boulders
- intertidalZone between high and low watermarks
- subtidalPermanently below waterline
pier · hull · kelp forest · benthic · plankton · seawater · salinity · tide pool
Notochord-possessing animal
- primitiveIn earliest form
- phylogenyEvolutionary relationships among organisms
- common ancestorOrigin point of descendants
- nerve cordMain bundled signal pathway
transitional · basal · genome · homology · Cambrian · fossil record
Waxy-leaved tropical climber
- Korean cuisinePeninsula's culinary tradition
- sashimiThinly sliced raw fish
- delicacyRefined sensitivity or rarity
- chewy textureResistant to biting through
raw seafood · seasonal · fermented · acquired taste · umami · brininess
tunicate
Coated marine invertebrate
pharynx · gill slits · cellulose · sessile · filter feeder · larva · tadpole stage · atrium · hermaphrodite · colonial
reef
Underwater rock or coral formation
- substrateUnderlying supporting material
- rocky shoreCoastline of boulders
- intertidalZone between high and low watermarks
subtidal · pier · hull · kelp forest · benthic · plankton · seawater · salinity · tide pool · coastal
chordate
Notochord-possessing animal
- primitiveIn earliest form
- phylogenyEvolutionary relationships among organisms
- common ancestorOrigin point of descendants
nerve cord · transitional · basal · genome · homology · Cambrian · fossil record
hoya
Waxy-leaved tropical climber
- Korean cuisinePeninsula's culinary tradition
- sashimiThinly sliced raw fish
- delicacyRefined sensitivity or rarity
raw seafood · chewy texture · seasonal · fermented · acquired taste · umami · brininess
sea-squirtlancelet
Primitive marine chordate
vertebrate · fish · amphibian · human · mammal
sea-squirtgreat white shark
Largest predatory fish
orca · giant squid · octopus · mantis shrimp · cuttlefish
sea, seas, seaward, seawards, seaborne, seafarer, seafaring, seabed, seascape