15530605
Pregunta 1
Pregunta
Chondrichthyes are also known as...
Respuesta
-
cartilaginous fish
-
bony fish
-
molluscs
-
hagfish
Pregunta 2
Pregunta
Chondrichthyes are characterized by...
Respuesta
-
cartilaginous skeletons
-
teeth independent of jaw
-
no swim bladder
-
pelvic claspers
-
gill slits
-
swim bladder
-
bony skeletons
-
sharp teeth
-
no gill slits
Pregunta 3
Pregunta
[blank_start]Subclass holocephali[blank_end] ([blank_start]ratfishes[blank_end]) have a single gill opening, bulky head, and venomous spine in front of the dorsal fin.
Respuesta
-
Subclass holocephali
-
Subclass Elasmobranchii
-
ratfishes
-
guitarfish
-
sawfish
Pregunta 4
Pregunta
[blank_start]Chimaeriformes[blank_end]--ratfishes--deepwater, upper jaws fused to skull, opercula
[blank_start]Rajiformes[blank_end]--guitarfish and skates--rajiform swimming, enlarged pectoral fins
Pristiformes--[blank_start]sawfish[blank_end]--long snout with numerous teeth
[blank_start]Myliobatiformes[blank_end]--sting rays, manta rays, eagle rays--swim by flapping pectoral fins
Respuesta
-
Chimaeriformes
-
Lamniformes
-
Hexanchiformes
-
Rajiformes
-
Torpediniformes
-
Squaliformes
-
sawfish
-
dogfish, lantern
-
angel sharks
-
Myliobatiformes
-
Squatiniformes
Pregunta 5
Pregunta
[blank_start]Torpediniformes[blank_end]--electric rays--produce electric discharge
Hexanchiformes--[blank_start]cow sharks, frilled sharks[blank_end]--6 or 7 gill slits
[blank_start]Lamniformes[blank_end]--great white, thresher, basking--two dorsal fins, 5 gill slits
[blank_start]Orectolobiformes[blank_end]--whale, bamboo, nurse--two dorsal fins, small gill slits, 4th and 5th overlapping
Respuesta
-
Torpediniformes
-
Chimaeriformes
-
Rajiformes
-
cow sharks, frilled sharks
-
saw sharks
-
angel sharks
-
Lamniformes
-
Pristiformes
-
Squaliformes
-
Orectolobiformes
-
Carcharhiniformes
-
Myliobatiformes
Pregunta 6
Pregunta
[blank_start]Pristiophoriformes[blank_end]--saw sharks--lengthened snout, two dorsal fins, no anal fin
Squaliformes--[blank_start]dogfish, lantern[blank_end]--two dorsal fins, no anal fin, 5 gill slits
Squatiniformes--[blank_start]angel sharks[blank_end]--two dorsal fins, no anal fin, pectoral and pelvic fins broad
[blank_start]Carcharhiniformes[blank_end]--hammerhead, bonnethead, blacktip reef, bull--two dorsal fins, anal fin, 5 gill slits, nictitating membrane
Respuesta
-
Pristiophoriformes
-
Chimaeriformes
-
Rajiformes
-
dogfish, lantern
-
guitarfish and skates
-
angel sharks
-
cow sharks, frilled sharks
-
sawfish
-
Carcharhiniformes
-
Hexanchiformes
-
Torpediniformes
Pregunta 7
Pregunta
Chimaeriformes, Myliobatiformes, and Lamniformes are all examples of __________ classes.
Respuesta
-
Elasmobranch
-
Shark
-
Olithobranch
Pregunta 8
Pregunta
Chondrichthyans all have enlarged lipid-filled [blank_start]livers[blank_end], used for [blank_start]buoyancy control[blank_end].
Respuesta
-
livers
-
swim bladders
-
stomachs
-
buoyancy control
-
energy storage
-
temperature control
Pregunta 9
Pregunta
Chondrichthyans use high-energy ketone bodies as metabolic substrates
Respuesta
- True
- False
Pregunta 10
Pregunta
Chondrichthyans have low blood urea concentrations.
Respuesta
- True
- False
Pregunta 11
Pregunta
Chondrichthyans have a [blank_start]cartilaginous[blank_end] skeleton. They [blank_start]lost[blank_end] dermal bone, [blank_start]retained[blank_end] dentine.
Respuesta
-
cartilaginous
-
bony
-
lost
-
retained
-
retained
-
lost
Pregunta 12
Pregunta
Cartilage is [blank_start]less[blank_end] dense than bone, so it assists in [blank_start]buoyancy[blank_end].
Respuesta
-
less
-
more
-
buoyancy
-
durability
Pregunta 13
Pregunta
Match the organ/adaptation to its sensory application.
Vision: [blank_start]Tapetum Lucidum[blank_end]
Electroreception: [blank_start]Ampullae of Lorenzini[blank_end] and [blank_start]Neuromast organs[blank_end]
Respuesta
-
Tapetum Lucidum
-
Lateral Line
-
Ampullae of Lorenzini
-
Nictitating Membrane
-
Neuromast organs
-
Hyomandibula
Pregunta 14
Pregunta
Which adaptation (made of guanine crystals) increases visual acuity in twilight?
Respuesta
-
tapetum lucidum
-
ampullae of Lorenzini
-
nictating membrane
Pregunta 15
Pregunta
Chondrichthyes initially locate prey using [blank_start]olfaction[blank_end], then identify them using [blank_start]vision[blank_end], and track them during the attack using [blank_start]electroreception[blank_end].
Respuesta
-
olfaction
-
vision
-
electroreception
-
olfaction
-
vision
-
electroreception
-
olfaction
-
vision
-
electroreception
Pregunta 16
Pregunta
What is the nictating membrane?
Respuesta
-
An opaque eyelid to protect eye when vision is no longer the primary sensory apparatus
-
An oily membrane coating the liver to further assist in buoyancy
-
A thin membrane to protect the nostrils when olfaction is no longer the primary sensory apparatus
-
The membrane around the embryo in Chondrichthyes
Pregunta 17
Pregunta
What is hyostylic jaw suspension?
Respuesta
-
upper jaw moves independently from skull, ligaments points of articulation
-
attatched palatoquadrate to skull
-
anothe name for a protruding jaw
Pregunta 18
Pregunta
What are the advantages of hyostylic jaw suspension?
Respuesta
-
allows for greater suction
-
improved precision in feeding
-
decreases suction
-
a funny smile
Pregunta 19
Pregunta
What is an amphistylic jaw suspension?
Respuesta
-
attached palatoquadrate to skull
-
upper jaw moves independently from skull, ligaments points of articulation
-
another name for a protrusible jaw
Pregunta 20
Pregunta
Suction feeding:
Respuesta
-
muscles swing hyomandibula laterally and anteriorly
-
hyomandibular extension
-
palatoquadrate is protruded to limits of elastic ligaments on orbital processes
-
protrusion drops mouth away from head
-
dentition secialized to allow swollowing whole
Pregunta 21
Pregunta
Ram feeding:
Respuesta
-
protrusion drops mouth away from head
-
dentition specialized to allow swallowing whole
-
muscles swing hyomandibula laterally and anteriorly
-
hyomandibular extansion
-
palatoquadrate is protruded to limits of elastic ligaments on orbital processes
Pregunta 22
Pregunta
Chondrichthyes teeth are attached to the jaw via:
Respuesta
-
collagen
-
cartilage
-
crazy glue
Pregunta 23
Pregunta
Chondrichthyes predatory behaviors:
Respuesta
-
roving behavior
-
bioluminescent lures
-
sub-lethal bites
-
suction feeding
-
filter feeding
Pregunta 24
Pregunta
[blank_start]Roving behavior[blank_end]: swimming back and forth across prey fields ([blank_start]seal & sea lion rookeries[blank_end])
[blank_start]Bioluminescent lures[blank_end]: deep-sea sharks
[blank_start]Sub-lethal bites[blank_end]: cookie-cutter sharks
[blank_start]Suction feeding[blank_end]: carpet sharks, leopard sharks...
[blank_start]Filter feeding[blank_end]: whale sharks, basking sharks, megamouth sharks ([blank_start]convergent evolution[blank_end])
Respuesta
-
Roving behavior
-
Bioluminescent lures
-
Sub-lethal bites
-
Suction feeding
-
Filter feeding
-
seal & sea lion rookeries
-
convergent evolution
Pregunta 25
Pregunta
Identify the specimen by common name, scientific name, and family.
Respuesta
-
Spotted Ratfish
-
Hydrolagus colliei
-
Family Chimaeridae
-
Family Carcharhinidae
-
Galeocerdo cuvieri
-
Sawfish
Pregunta 26
Pregunta
Identify by common name, scientific name, and family.
Respuesta
-
Whale Shark
-
Family Rhincodontidae
-
Rhincodon typus
-
Family Carcharhinidae
-
Carcharhinus leucas
-
Blacktip Shark
Pregunta 27
Pregunta
Family Chimaeridae are characterized by:
Respuesta
-
single gill opening on each side
-
first dorsal fin preceded by spine
-
short rounded snout
-
long pointed caudal fin
-
humpback
-
2 dorsal fins
Pregunta 28
Pregunta
Check all that apply to the Spotted Ratfish (Hydrolagus colliei)
Respuesta
-
long venemous spine
-
Habitat: soft bottoms to 500 fathoms
-
Diet: clams, crabs, shrimps, fishes
-
Reproduction: oviparous
-
IUCN status: Least Concern
-
IUCN status: Endangered
-
Reproduction: viviparous
Pregunta 29
Pregunta
Check all that apply to the whale shark (Rhincodon typus)
Respuesta
-
Largest fish in the world
-
Viviparous
-
Range: Circumtropical
-
Diet: plankton
-
Lunate tail
-
humpback
-
Range: Circumglobal
-
Diet: small fishes
Pregunta 30
Pregunta
Family Carcharhinidae are characterized by:
Respuesta
-
2 dorsal fins
-
elongate caudal fin pointed upward
-
only 1 functional row of blade-like teeth at once
-
venomous spine in front of dorsal fin
-
filter feeders
Pregunta 31
Respuesta
-
Bull Shark
-
Carcharhinus leucas
-
inshore, no spiracle
-
IUCN status: near threatened
-
Carcharhinus limbatus
-
coastal and offshore, no spiracle, tips of pelvic fins black
-
Tiger Shark
Pregunta 32
Respuesta
-
Blacktip Shark
-
Carcharhinus limbatus
-
coastal and offshore, no spiracle, tips of pelvic fins black
-
inshore, no spiracle
-
coastal and offshore, dark spots forming bars, small spiracle
-
IUCN status: near threatened
-
Carcharhinus leucas
Pregunta 33
Respuesta
-
Tiger Shark
-
Galeocerdo cuvieri
-
coastal and offshore, small spiracle, caudal peduncle with dermal reidge on each side
-
IUCN status: near threatened
-
IUCN status: endangered
-
Carcharhinus leucas
-
Bull Shark
Pregunta 34
Pregunta
Check all that apply to Family Sphyridae
Respuesta
-
Hammerhead Sharks
-
Greatly depressed and laterally expanded head
-
may have increased electrosensitivity
-
Two dorsal fins
-
upper lobe of caudal fin is elongate and pointed upward
-
Sawfishes
Pregunta 35
Respuesta
-
Scalloped Hammerhead
-
Sphyrna lewini
-
anterior margin of head with median indentation
-
Habitat: near ocean surface
-
Viviparous
-
Diet: fish, squid, singrays
-
IUCN status: endangered
-
Sphyrna tiburo
-
Habitat: Shallow inshore waters
Pregunta 36
Respuesta
-
Bonnethead shark
-
Sphyrna tiburo
-
Sphyrna lewini
-
Habitat: Shallow inshore waters
-
IUCN status: least concern
-
Diet: crustaceans, mollusks, fishes
-
Diet: fish, squid, stingrays
-
IUCN status: endangered
Pregunta 37
Pregunta
Check all that apply to Family Pristidae
Respuesta
-
Two well developed dorsal fins
-
Sawfish
-
Stingrays
-
Body greatly depressed
-
saw-like rostrum
-
can swim upstream to freshwater
Pregunta 38
Pregunta
Identify and check all that apply
Respuesta
-
Smalltooth Sawfish
-
Pristis pectinata
-
moderately depressed body
-
Reproduction: Lecithotrophic viviparous
-
Habitat: estuaries, lower parts of rivers, shallow coastal waters
-
IUCN status: critically endangered
-
IUCN status: near threatened
-
Galeocerdo cuvieri
Pregunta 39
Pregunta
Check all that apply to Family Rajidae
Respuesta
-
Skates
-
body disc-like
-
wings shaped by pectoral fins & attatched to head
-
dorsal, anal, and caudal fins reduced
-
pectoral fins extend forward beyond mouth
-
dorsal fin absent
-
Stingrays
Pregunta 40
Pregunta
Identify and check all that apply
Respuesta
-
Clearnose Skate
-
Raja eglanteria
-
sides of snout translucent, no ocellar spot, etire tail thorny
-
Diet: mollusks, crustaceans
-
Diet: polychaetes, benthic fishes
-
Habitat: shallow shores
-
IUCN status: Least Concern
-
Big Skate
-
Raja binoculata
Pregunta 41
Respuesta
-
Big Skate
-
Raja binoculata
-
front of disc concave, ocellus on each side of disk
-
Diet: polychaetes, benthic fishes
-
Habitat: over stoft bottoms, bering sea to baja California
-
Diet: mollusks, crustaceans
-
IUCN status: Least Concern
-
Raja eglanteria
-
Clearnose Skate
Pregunta 42
Pregunta
Check all that apply to Family Dasyatidae
Respuesta
-
Skates
-
Stingrays
-
Body greatly depressed
-
tail distinct from body
-
pectoral fins extend forward beyond mouth, dorsal fin absent
-
Wings shaped by pectoral fins and attatched to head
Pregunta 43
Pregunta
Check all that apply to Family Myliobatidae
Respuesta
-
Robust body with falcate pectoral fins
-
disc wider than long
-
anterior parts of pectoral fins for 1 or 2 subrostral lobes under snout
-
anterior subdivisions of pectoral fins modified as 2 separate fins known as cephalic fins
-
posterior edges of pectoral fins are falcate
-
Eagle Rays
-
Mantas
Pregunta 44
Pregunta
Check all that apply to Family Mobulidae
Respuesta
-
Lack large tooth plates
-
anterior subdivisions of pectoral fins modifed as 2 separate fins known as cephalic fins
-
Mantas
-
Eagle Rays
-
posterior edges of pectoral fins are facate
-
anterior parts of pectoral fins form 1 or 2 subrostral lobes under snout
Pregunta 45
Pregunta
Many shark species show recent and rapid declines in population size.
Respuesta
- True
- False
Pregunta 46
Pregunta
Why are shark populations suceptible to rapid declines?
Respuesta
-
Low fecundity
-
Reproductive migratory behavior exposes sharks to human impacts
-
Apex predators are rare
-
Shark finning
-
Human fear and wanton killing
-
All of these answers are correct
Pregunta 47
Pregunta
Even healthy top predator populations can be small and probably even more vulerable to depletion. than previously expected
Respuesta
- True
- False
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.