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marinevocab3
marine bio exam 3 vocab
| Question | Answer |
|---|---|
| mantle | protective covering of mulluscan body |
| radula | ribbon of tissue containing teeth in molluscans |
| periostacum | outer layer of mulluscan shell; composed of concliolin |
| primatic | middle layer of molluscan shell; CaCO3 and protein |
| nacreous | innermost layer of molluscan shell; called mother of pearl in oysters |
| operculum | covering over shell's aperture |
| nudibranchs | no shell gastropods |
| cerata | projections from body of gastropods; increase surface area and gas exchange |
| trochophore | primative molluscs; free swimming gastropods |
| veliger | free swimming gastropod larva |
| umbo | oldest part of shell |
| adductor muscles | close valves of bivalve shell |
| palps | form food into mass in bivalves; appendages used for sensation in chelicerata |
| siphons | mantle fused around opening in bivalves |
| fusion | one valve cemented to surface |
| byssus | tough protein from foot |
| nautiloids | shells with gas chambers |
| siphuncle | connect nauiloid to other chambers and removes water |
| sephia | dark fluid containing melanin |
| chromatophores | cells concentrated or dispersed to change color in cephalopods |
| hydrostatic skeleton | compartment with fluid for support in annelids |
| setae | small bristles used for locomotion, digging, anchorage, protection in annelids |
| epitoky | formation of pelagic reproductive individuals |
| fertilizin | substance released by female polychaeta to stimulate males to shed sperm |
| cephalothorax | largest region of arthrpod with most appendages |
| abdomen | area in arthopods that contain gills |
| telson | long spine for steering and defencse in anthropods |
| carapace | shield-like body covering in anthropods |
| swimmerets | swimming legs in anthropods |
| chelipeds | legs modified for defense |
| spermatophores | packets of sperm |
| copulatory pleopods | appendages that deliver sperm in anthropods |
| zoea larval stage | initial stage in crabs |
| nauplius larval stage | initial stage in shrimp |
| cirripeds | feathery appendages that extend when shell of barnacle is open |
| fouling | attachment to docks, piers, boats, etc |
| ossicles | plates of CaCO3; make up endoskeleton |
| pedicellarine | pincer-like structures that keep body surface clean in echinoderms |
| madreporite | water entry point in enchinoderms |
| tube feet | hollow w/ ampulla and a sucker |
| abulacral grooves | radiate out from mouth on each arm |
| aboral surface | side opposite mouth on stars |
| automize | to shed limbs when disturbed |
| test | hard exoskeleton of urchins |
| Aristotle's lantern | chewing structure composed of 5 teeth in urchins |
| respiratory trees | gas exchange in cucumbers |
| oral tentacles | modified tube feet in cucumbers |
| cuvierian | sticky tubules released from anus of cucumber |
| eviscaration | release internal organs thru mouth or anus of cucumber |
| cirri | cling to bottom (lillies/feathers) |
| holoturin | sea cuc poison |
| incurrent siphon | brings in water and food in squirts |
| excurrent siphon | expels water, gametes, and waste in squirts |
| spiracles | sm round openings before gills |
| oviviparous | egg laying |
| ovoviviparous | eggs retained until ready to hatch |
| viviparous | have live young |
| heterocercal tail | dorsal lobe is longer than ventral projection (for lift) |
| rectal gland | excrete Na and Cl |
| nictitating membrane | protects shark eyes when biting |
| ampullae of Lorenzini | electroreception in sharks |
| spiral valve intestine | increase surface area in sharks |
| fusiform | body shape; streamline; high/narrow tail |
| iridophores | chromatophores used to produce structural colors |
| poster colors | bright/showy |
| aposematic color | warn too venemous/spiny |
| cryptic color | blends in |
Created by:
ktschida
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