BioLab 210 Exam 2.0
Bivalvia means "___".
2 shells
___ excrete waste through pores at the base of each antenna.
Antennal (green) glands
___ are the most anterior segments for balance, touch, and taste.
Antennules
___ pumps blood for the annelid.
Aortic arch
___ are respiratory organs on arachnids.
Book lungs
___ excretes to annelid gut excess calcium.
Calciferous gland
___ is the exoskeleton that covers the cephalothorax of crayfish.
Carapace
___ can have a painful bite.
Centipedes
___ are extremely stubby projections on either side of the abdominal tip that bear sensory organs capable of detecting air movements for arthropods.
Cerci
___ is an indentation on the carapace that extends across the mid-region and separates the head and thoracic region of a crayfish.
Cervical groove
___ are the "jaws" of arachnids that are hollow and contain venom glands.
Chelicerae
___ are the largest and most prominent pair of appendages, used for self defense, food acquisition, and manipulation (claws).
Chelipeds
___ are pigment cells that change the color of an organism, allowing it to camouflage. They are the dark spots around the squid's mantle.
Chromotophores
___ are two large nerves that lead from the brain, around the esophagus, and join the ventral nerve cord of the crayfish.
Circumesophageal connectives
___ band glandular structure that secretes a cocoon for fertilized eggs for the annelid.
Clitellum
___ attaches the leg to the body, allows the grasshopper to move.
Coxa
___ stores food for the annelid.
Crop
___ is a thin, transparent ecto-membrane acellular (no cells) of the annelid.
Cuticle
___ produces digestive enzymes for mollusks.
Digestive gland
___ are the branched enlargements of the ventral nerve cord found on each segment of the crayfish.
Ganglia
___ is the chitinous teeth in the stomach that grind up food for crayfish.
Gastric mill
___ grinds food for the annelid.
Gizzard
___ produces gametes for mollusks.
Gonad
Female
Identify sex of squid.
Male
Identify sex of squid.
___ absorbs and transports digested food.
Intestine
___ move food to the mouth of the bivalve.
Labial palps
___ (upper lip) holds food in place for arthropods
Labrum
___ are the "true jaws" behind the antennae that bite and crush food brought to the mouth.
Mandibles
___ is a tough edge shell.
Mantle
___ hold and recognize solid food, tear it, and pass it to the mouth of arthropods.
Maxillae
___ are finger like appendages that move their food around in the arthropod's mouth.
Maxillary palps
___ are the series of body segments on annelids.
Metameres
___ can be kinda toxic.
Millipedes
___ are coiled tubes that carry out metabolic waste excretion for annelids.
Nephridia
___ is the structure near the grasshopper's anus with four points used to dig into the ground when the eggs are laid.
Ovipositor
___ is the prominent sheath that covers the male genitalia on arthropods.
Pallium
___ are the organs of touch of arachnids.
Pedipalps
___ is the first body segment containing the mouth of the annelid.
Peristomium
___ is the first body segment that surrounds the mouth of the annelid.
Peristomium (behind the prostomium)
___ is a saddle-shaped shield on the prothorax used for protection on arthropods.
Pronotum
___ is the head of the annelid.
Prostomium (anterior to the peristomium)
___ is the end segment of an annelid that contains the anus.
Pygidium
___ is the pointed extension of the carapace at the head of the crayfish.
Rostrum
Phylum Mollusca classes
Scaphopoda Polyplacophora Gastropoda Bivalvia Cephalopoda
___ store the sperm of earth worms.
Seminal vesicles
___ divides segments internally for the annelid.
Septum
___ are bristle-like structures that help segmented worms move.
Setae
___ are found on tibia used for grooming or to connect with ground surface to assist in jumping on arthropods.
Spines
___ are silk-producing organs.
Spinnerets
___ are external respiratory pores of arthropods.
Spiracles
___ is the exoskeleton extension area joining tibia and tarsus on arthropods.
Spur
___ are the ventral appendages used for slow movement and maneuvering and also play a role in crayfish reproduction.
Swimmerets
___ are the three most major regions of the body.
Tagmatae
___ are the "feet" that help the grasshopper maintain stability.
Tarsus
___ is the triangular shaped middle of the two uropods. It bears the anus.
Telson
___ is the part of the body between the neck and the abdomen; legs and wings attached here.
Thorax
___ is the thin oval membrane of an arthropod that detects vibrations and mating calls.
Tympanum
___ is the internal fold of the intestine to increase surface area and absorb nutrients for the annelid.
Typhlosole
Cecum
What is indicated by the arrow?
Prostomium
What is the region indicated by the arrow?
Clitellum
What is the structure indicated by the arrow?
Mouth
What is the structure indicated by the arrow?
Nidamental Gland
What is the structure indicated?
Incurrent aperture
What is the structure labeled 10?
Gena
What is the structure labeled 13?
Posterior vena cava
What is the structure labeled 13?
Pen
What is the structure labeled 16?
Branchial heart
What is the structure labeled 17?
Systemic heart
What is the structure labeled 18?
Anterior adductor muscle
What is the structure labeled 1?
Cephalothorax
What is the structure labeled 1?
Copulatory swimmerets
What is the structure labeled 1?
Digestive gland
What is the structure labeled 1?
Fin
What is the structure labeled 1?
Gills
What is the structure labeled 1?
Ink sac
What is the structure labeled 21?
Abdomen
What is the structure labeled 2?
Eye
What is the structure labeled 2?
Intestine
What is the structure labeled 2?
Labial palp
What is the structure labeled 2?
Mouth
What is the structure labeled 2?
Abdominal flexor muscles
What is the structure labeled 3?
Antenna
What is the structure labeled 3?
Anus
What is the structure labeled 3?
Arm
What is the structure labeled 3?
Foot
What is the structure labeled 3?
Pyloric stomach
What is the structure labeled 3?
Cardiac stomach
What is the structure labeled 4?
Cheliped
What is the structure labeled 4?
Digestive glands
What is the structure labeled 4?
Excurrent aperture
What is the structure labeled 4?
Mantle
What is the structure labeled 4?
Tentacle
What is the structure labeled 4?
Antennule
What is the structure labeled 5?
Frons
What is the structure labeled 5?
Gill
What is the structure labeled 5?
Gonad
What is the structure labeled 5?
Ostium
What is the structure labeled 5?
Digestive gland
What is the structure labeled 6?
Heart
What is the structure labeled 6?
Green gland
What is the structure labeled 7?
Heart
What is the structure labeled 7?
Kidney
What is the structure labeled 7?
Periopods (walking legs)
What is the structure labeled 7?
Tibia
What is the structure labeled 86?
Spiricale
What is the structure labeled 87?
Trochanter
What is the structure labeled 88?
Prothorax
What is the structure labeled 89?
Clypeus
What is the structure labeled 8?
Mantle
What is the structure labeled 8?
Posterior adductor muscle
What is the structure labeled 8?
Uropod
What is the structure labeled 8?
Uropod
What is the structure labeled 90?
Ocelli (simple eye)
What is the structure labeled 91?
Cervical groove
What is the structure labeled 92?
Compound eye
What is the structure labeled 92?
Tympanum
What is the structure labeled 93?
Femur
What is the structure labeled 94?
Rostrum
What is the structure labeled 94?
Chela
What is the structure labeled 95?
Ovipositor
What is the structure labeled 95?
Swimmerets
What is the structure labeled 96?
Tarsus
What is the structure labeled 96?
Gill
What is the structure labeled 9?
Telson
What is the structure labeled 9?
excurrent aperture
What is the structure labeled 9?
Nidamental gland
What is the structure labeled A?
Ovary
What is the structure labeled A?
Penis
What is the structure labeled A?
Beak
What is the structure labeled B?
Vas deferens
What is the structure labeled B?
Testis
What is the structure labeled E?
Kidney
What is the structure labeled F?
Ink sack
What is the structure labeled I?
Siphon
What is the structure labeled J?
Gill
What is the structure labeled L?
Oviduct
What is the structure labeled M?
Siphon retractor muscle
What is the structure labeled M?
Dorsal
What position is label A?
Ventral
What position is label B?
The ___ closes the shells.
adductors
The ___ is near the mouth of the clam.
anterior end
The ___ of a shell is the large opening for the gastropod to come in or out.
aperture
The squid's ___ is a pair of hearts that pump deoxygenated blood from the body through the gills.
branchial hearts
The ___ stores food. It hangs off of the stomach near the testes of a squid.
cecum
A centipede is a ___.
chilopoda
Polyplacophora are ___.
chitons
Bivalvia are ___ and ___.
clams mussels
The ___ are hidden down in the pallial cavity and used for respiratory gas exchange.
ctenidia (gills)
A millipede is a ___.
diplopoda ("two feet")
The ___ transports blood for the annelid.
dorsal blood vessel
Scaphopoda are ___.
elephant tusk shells
The ___ aperture filters water out.
excurrent
The ___ is the upper half of the legs that moves and allows the grasshopper to walk.
femur
The ___ has a wavy edge.
foot
The ___ of a chiton is in the middle, soft, and forms suction.
foot
The ___ pushes the bivalvia foot out.
foot protractor
The ___ protect the hindwings of the grasshopper.
forewings
The ___ (siphon) with valves is where water jets out for the squid to move rapidly.
funnel
The ___ move the siphon of the squid.
funnel retractors
The ___ is only on the right side of the head of gastropods for reproduction.
genital pore
The ___ are also for feeding, not just breathing.
gills
The ___ move the head of the squid.
head retractors
Cephalopoda means "___".
head-foot
The ___ are used to fly and stabilize the grasshopper while jumping.
hindwings
The ___ connects the left and right valves of bivalvias.
hinge ligament
The ___ aperture filters water intake.
incurrent
The ___ is the canal on the squid's neck.
infundibular cartilage
The ___ is a black tube dorsal to the siphon that produces ink for protection.
ink sac
The squid's ___ is an excretory organ that filters waste products from blood.
kidney
the ___ (lower lip) holds food and saliva in the mouth by acting like lips.
labium
The ___ locks the shells.
lateral teeth
There are two lateral teeth on the ___ valve.
left
The ___ of annelids shorten the body segment.
longitudinal muscles
The ___ of bivalvias is the tissue stuck to the shells.
mantle
The squid's ___ is a muscular body tube surrounding the internal organs.
mantle
The ___ secretes the shell of gastropods.
mantle (collar)
Polyplacophora means "___".
many plates
The crayfish's ___ hold food while eating.
maxillipeds
The ___ is the inner layer of the bivalvia shell which pearls are made of.
nacreous layer
The ___ insure that water goes one direction in the squid.
neck valves
All arthropods and non-cephlopods have an ___.
open circulatory system
The ___ is the hard covering that covers the aperture.
operculum (lid)
There are a left and right ___ inside the collar of a squid.
pallial cartilage
The ___ is the area that separates the mantle and the foot.
pallial cavity
The ___ is where the mantle attaches to the bivalvia.
pallial line
In polychaete annelids, one of the two flap-shaped appendages that are used for locomotion or gas exchange is called a ___.
parapodium
The ___ is the reduced internal shell that helps the rigidness of the squid. It is usually a hard amber color.
pen
The ___ releases sperm.
penis
The ___ surrounds the outside of the bivalvia shell.
periostracum
The ___ is the larger respiratory opening of gastropods.
pneumostome
Umbo points away from the ___ of the bivalve.
posterior end
The ___ interlocks the two shells.
pseudocardinal teeth
The ___ scraps off food and transports into mouth for gastropods.
radula (tooth tongue)
The ___ is the portion of digestive tract leading to the anus.
rectum
All non-cephalopod molluscs have a ___, a ___, ___, and a ___.
reduced coelom muscular foot shells (=valves) mantle
The ___ withdraw the bivalvia foot inside sells.
retractors
There is one lateral tooth on the ___ valve.
right
The ink is expelled into the water through the ___.
siphon
The ___ are to filter out food.
siphons with apertures
Gastropoda are ___, ___, ___, and ___.
snails slugs conchs whelks
The eyes of gastropods are ___ on their tentacles.
sometimes
The ___ of a male crayfish is on the base segment of the fourth pair of walking legs.
sperm duct opening
The ___ packages the sperm. It is usually white and lumpy in the squid.
spermatophoric gland
The ___ stores the sperm. It is usually triangular in the squid.
spermatophoric sac
The ___ is a series of whorls.
spire
Cephalopoda are ___ and ___.
squids octopuses
The ___ is a cluster of nerves that is in the shape of a star on both sides of the squid's neck.
stellate ganglion
The ___ produce sperm.
testes
systematic heart
the ___ receives oxygenated blood from the gills and pumps it throughout the body.
The ___ is the lower half of the legs that moves and allows the grasshopper to jump.
tibia
The ___ is the oldest part of the clam.
umbo
The ___ conducts nervous impulses for annelids.
ventral nerve cord
The ___ is the oval bulge at the top anterior of the bivalve. It contains the digestive organs.
visceral mass
The crayfish has a pair of ___ on each (four) segment.
walking legs
The ___ is a curvature of the shell.
whorl
