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BIOS 173 Part Two

General vocabulary

QuestionAnswer
The calcareous endoskeleton of a sea urchin or sand dollar test
Pincer-like mouthparts of spiders and relatives chelicerae
Water bear state of suspended animation tun
Lateral appendages of polychaetes parapods
The earthworm reproductive organ which forms the egg case clitellum
Bristles of annelids setae
Tapeworm reproductive segment proglottid
Stinging cells of cnidarians nematocysts
Appendages of arachnids used for grasping, sensory perception and sperm transfer pedipalps
The primitive thyroid gland endostyle
Fibers that form the skeletons of Demospongiae spongin
Pointy structures that form the skeletons of some sponges spicules
Cells of a sponge that line the canals, create the current and filter out food collar cells
Part of a sponge where water exits Excurrent vent
Part of a sponge where water enters incurrent canal
Part of a sponge connecting incurrent canal to inside of sponge Radial canal
Largest internal canal of a sponge spongocoel
A trait unique to the descendants of a common ancestor synapomorphy
A trait common to all groups compared Pleisiomorphy
Sessile, tubular cnidarian form, sometimes colonial polyp
Free-swimming cnidarian medusa
Having multiple different forms polymorphy
The notches on the bell rim of Aurelia medusa sensory notches
Where the sensory structures are located at the head of the organism cephalization
Having both male and female gonads in the same individual hermaphrodite
Tapeworm head, including suckers and hooks scolex
The hard protective covering of roundworms cuticle
Parasitic baby bivalve glochidium
Where one ancestral species gives rise to a bunch of differentially adapted species adaptive radiation
Where very similar traits arise in unrelated groups convergent evolution
The bumpy part of a mussel shell umbo
The triangular flaps near a clam's mouth labial palps
The part of a clam that secretes the shell mantle
The part of a squid that squirts out water funnel
The earthworm organ that stores food before it is digested crop
The earthworm organ that chews food gizzard
The tonguelike toothy organ of mollusks radula
The tubes in an insect respiratory system Trachea
The arachnid respiration organ book lungs
Insect chewing mouthparts mandibles
The excretory structure of annelids nephridia
The internal compartment-dividing membranes of annelids Transverse partitions
Earthworm brains! Suprapharyngeal ganglion
The input of the insect respiratory system spiracles
The pinching claws of crayfish chelipeds
The abdominal appendages of crayfish swimmerets
The 3 chitinous teeth to grind crayfish food gastric mill
Earthworm swallowing muscles Pharynx
Earthworm glands regulating the calcium, carbonate ion concentrations and pH of blood calciferous glands
Microscopic pinching claws of echinoderms pedicellaria
Water entrance to echinoderms sieve plate
Holes in vertebrate skulls near the ears temporal fossa
Connects the sieve plate to the ring canal of echinoderms stone canal
Connects the stone canal to the radial canals of echinoderms ring canal
Carries water into echinoderm arms radial canals
Part of tube foot which controls water flow in echinoderms ampulla
Gas exchange mechanism of echinoderms skin gills
A flexible rodlike structure that forms the supporting axis of the body in chordates notochord
A relationship where both organisms involved receive benefits mutualism
A relationship in which one species benefits from the other without impacting it Commensalism
A relationship where one organism benefits while harming the other parasitism
The outer tissue layer ectoderm
The inner tissue layer endoderm
The middle tissue layer mesoderm
Created by: sw326108
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