Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
67 Cards in this Set
- Front
- Back
Periostracum |
Top layer of mollusc shell |
|
Prismatic Layer |
Second layer of mollusc shell |
|
Nacreous layer |
Inside layer of mollusc shell |
|
Mantle |
the dorsal body wall which covers the organs of digestion, reproduction and movement |
|
Nacre |
mother of pearl |
|
Osphradium |
test incoming water for silt and possible food particles |
|
Ctenidia |
a comblike structure, especially a respiratory organ or gill in a mollusk, consisting of an axis with a row of projecting filaments. |
|
Hemocoel |
the primary body cavity of most invertebrates, containing circulatory fluid |
|
Radula |
Mouth |
|
Metanephridia |
excretory gland |
|
Nephridiophore |
the external opening |
|
Trochophore |
Larvae stage having a roughly spherical body, a band of cilia, and a spinning motion |
|
Velum |
a membrane, typically bordering a cavity |
|
Operculum |
shield used to plug entrance of shell |
|
Detorsion |
less torsion |
|
Siphon |
tube used to get food and water when shell is closed |
|
Cerata |
used for gas exchange, hair-like, may contain nematocysts |
|
Rhinophores |
chemosensory, analogous to osphradium |
|
Parapodia |
a lateral extension of the foot used as an undulating fin for swimming |
|
Kleptoplasty |
stealing plastids; algal genes are incorporated into sea slug DNA |
|
"Love Darts" |
made of chitia or calcium carbonate |
|
Hectocotylus |
modified arm used to transfer spermatophore to female |
|
semelparous |
when cephalopods die after reproduction |
|
Chromatophores |
a cell or plastid that contains pigment |
|
Septa |
a wall, dividing a cavity or structure into smaller ones |
|
Siphuncle |
transports liquid/gases through chambers |
|
Cephalopod defenses |
1. Camouflage 2. Minicry 3. Bright Patterns 4. Bioluminescence 5. Ink 6. Autotomy 7. Construct a shelter |
|
Camouflage |
chromatophores on top layer of reflective cells Papillae can change texture |
|
Mimicry |
Look and act like another animal |
|
Bright patterns |
aposematic (warn predators hat you're toxic) and deimatic (startling coloration) colorations |
|
Bioluminescense |
produced by photophores or bacteria used to lure in prey, communication, and courtship |
|
Ink |
ink sac is in digestive system, discharges through anus Confuses predators |
|
Autotomy |
drop arm to escape predation |
|
Construct a shelter |
the veined octopus will carry around shells to later use as shelter |
|
Cuttlebone |
used for buoyancy regulation |
|
Pen |
stick of chitin and proteins |
|
Adductor muscles |
a muscle whose contraction moves a limb or other part of the body toward the midline of the body or toward another part |
|
Incurrent siphon |
takes in water |
|
Excurrent siphon |
lets out water |
|
Byssal threads |
strands of protein used to attach to things like a rock |
|
Glochidia |
toxin released to parasitize fish |
|
Infauna |
burrow into substrate |
|
Setae |
a stiff hairlike or bristlelike structure |
|
Metamerism |
segmented body |
|
Metanephridia |
circulatory system |
|
Epitoky |
reproduction event where all epitokes come to the surface and have a mass birth |
|
Peristaltic waves |
contractive movement done by worms |
|
Spermathecae |
a receptacle in which sperm is stored after mating |
|
Lophophore |
feeding appendage |
|
Ecdysis |
Molt |
|
Tagmatization |
Fused segments |
|
Epicuticle |
the thin, waxy, protective outer layer covering the surfaces of some plants, fungi, insects, and other arthropods |
|
Procuticle |
a thick, inner, chitin–protein layer |
|
Ostia |
pores in the heart that pulls blood in from body |
|
Ocelli |
another term for simple eye |
|
Ommatidium |
each of the optical units that make up a compound eye |
|
Cephalon |
head section of an arthropod |
|
Thorax |
middle section of an arthropod |
|
Pygidium |
the terminal part or hind segment of the body |
|
Prosoma |
Head and thorax regions together in one |
|
Opisthosoma |
Abdomen |
|
Chelicerae |
either of a pair of appendages in front of the mouth in arachnids and some other arthropods, usually modified as pincerlike claws. |
|
Pedipalps |
each of the second pair of appendages attached to the cephalothorax of most arachnids |
|
Gnathobase |
a joint or process of the proximal part of the appendage of an arthropod modified to aid in carrying or masticating food |
|
Ovigers |
used to groom other legs and holds females eggs after reproduction |
|
Spinnerets |
any of a number of different organs through which the silk, gossamer, or thread of spiders, silkworms, and certain other insects is produced |
|
Phoretic |
hitchhike on other organisms |