Marine and Aquatics I Test #5 Flashcards
A bivalve with verticle and horizontal lines, but without the triangle auricles
Cockle
Flat, colorful. It’s literally just a disk stuck to the floor.
Chiton
That creepy little worm, the one with a green tail and pink belly and brown head. It looks gross and is segmented.
Clam Worm
Limpets, abalones, and nudibranchs are what phylum
Mollusca
Clam Worms are what phylum
Annelida
Peanut worms are what phylum
Sipuncula
Squids and octopuses are what phylum
mollusca
scallops, clams, and mussels are what phylum
Mollusca
Lug worms are what phylum
annelida
Christmas tree worms are what phylum
annelida
Ribbon worms are what phylum
nemertea
Leeches are what phylum
annelida
Chitons are what phylum
mollusca
Tusk shells are what phylum
mollusca
chitons are what class
polyplacophor
cone snails, limpets, abalones, and nudibranchs are what class
gastropoda
clams, oysters, and scallops are what class
bivalvia
Squids, octopuses, cuttlefish, and nautiluses are what class
Cephalopda
Squids, octopuses, cuttlefish, and nautiluses are what class
Cephalopda
leeches and earthworms are what class
cliterllata
Lug worms, clam worms, and Christmas tree worms are what class
polychaeta
Tusk shells
Scaphopoda
The only class of mollusks that lack heads and radulas
bivalvia
The class of mollusks that uses ink sacs for defense
Cephalopoda
This word translates to “belly-foot”
gastropoda
This word translates to “head-foot”
Cephalopoda
This class of mollusks has 8 armored plates on their shells
Polyplacophora
this class of mollusks makes use of incurrent siphons for filter feeding
bivalvia
this word translates to “two halves/shells”
bivalvia
this class of mollusks has shells that are coiled
gastropoda
have chromatophores that allow for color change
Cephalopoda
Mollusks use this structure for feeding
radula
secrets the shell of mollusks
mantle
mollusks use this structure for movement
foot
another name for a sea slug
nudibranch
limpets, abalones, and cone snails are examples of these
sea snails
the only cephalopod that has a shell
nautilus
the shell of squids is reduced to this internal structure in their heads
pen
cephalopods use this for jet propulsion through the water
funnel
Do worms have radial symmetry?
No
Do worms have a head with a brain (cephalization)
Yes
Are worms diploblastic?
No
Do most worms have incomplete digestion?
No
What type of excretory structure does Sipuncula use?
Metanephridia
What type of excretory structure does Annelida have?
Nephridia
What type of excretory structure does Nemertea use?
Flame Cells
All annelids have segments called _________________ that look like rings
annuli
Polychaetes have flesh-like projections called _____________ with chitinous bristles called ________ on their tips
Parapodia; setae
Which of these is NOT an example of a polychaete?
Clam worm
Leech
Lug worm
Tube worm
Leech
What are the structures are located on the parapodia of polychaetes?
gills
Clam worms have a total of ____________ eyes on their head and _____________ palps/feelers near their mouths
4; 2
Both clam worms and ribbon worms make use of a _______________ for prey capture
Proboscis
Which of these worms have spiral-shaped crowns with ciliated radioles?
Christmas tree worms
Which of these worms have clitellum for exchanging sex cells
Leeches
The epidermis of sipunculans and annelids is surrounded by a protective covering called a _________________
cuticle
which phylum of worms includes the longest animal specimen on record?
Nemertea
Nemerteans in class Enopla have a proboscis with a piercing dagger-like structure called a _____________ on the tip. This dagger-like structure is composed of _____________.
stylet; calcium carbonate
The hooks and tentacles on the mouths of peanut worms are covered in _______________
Cilia
Peanut worms retract a portion of their bodies called the ___________ whenever they feel endangered or threatened. They also retract their ___________ when they do this.
Introvert; anus
the heads of clam worms are divided into anterior and posterior
Prostomia
Which phylum of worms have a closed circulatory system (just like humans)
annelida
Which of these animals uses hematophagy as a feeding behavior?
Leeches
which worms leave behind coiled husks called castings
Lug worms
the setae of polychaetes are made of _____________. While the stylet in ribbon worms is made of ____________.
Chitin; CaCO3
The crowns of Christmas tree worms are used for feeding and…
Respiration
where do ribbon worms store their proboscis when it’s not in use
rhyncocoel
which of these worms have a nerve ring in place of a brain?
Peanut worms
Chitons have a unique ________________ ability that allows them to reliably return to their original location if they venture from it. They also have a compound called magnetite in their teeth, which is a ____________-based compound.
homing, iron
Nudibranchs have “fuzzy” structures called ___________ with gills located underneath. They have poor vision, but make up for it by having ___________________ that allow for a heightened sense of smell.
Cerata, rhinophores
The cone snail has a unique adaption in that it has a tooth-like radula that is armed with _______________. This modified radula is located within its tube-like _________________. Cone snails tend to have poor vision, but they have a specialized sense organ called a(n) ___________________ that detects sensory information.
venom, proboscis, osphradium
the most significant difference between scallops and other bivalve shells is that scallops have triangular shaped ____________ at the base of their shell
auricles
Bivalves like mussels and oysters will oftentimes attach themselves to surfaces or to each other using their
byssal threads
Quahogs are an example of this types of bivalve
clam
the group of mollusks that are capable of creating pearls are the ___________. The value of pearls increases if they are more shiny, a property called ____________.
Bivalves; iridescence
Pearls are created when the _____________ produces secretions around an irritant like a parasite, sediment, or grain of sand. The pear will develop around a shiny layer of tissue called mother of pearl, or ________________.
mantle; nacre
The only cephalopods that don’t have tentacles are __________, while the only cephalopods that do’t have arms are _____________.
Octopuses; nautiluses
The tentacles of nautiluses are unique in that they lack
suction cups
Cephalopods have a powerful ____________ that they use to crush their prey items. In octopuses, this structure has an abundant amount of __________.
Beak; venom
_______________ have the ability to hypnotize their prey into a trance-like state using their chromatophores. In these animals, the _____________ have more arms.
Cuttlefish, males
In cephalopods, the _____________ have suction cups that extend the entire length of the appendage. Their _____________ only have suction cups at the very tips/ends.
arms; tentacles
