Marine reptiles are ectothermic. What does ectothermic mean?
Relying on the circulatory system to regulate temperature
Pertaining to the acquisition of oxygen from the water
Pertaining to the recruitment of young to a new area
Relying on the environment to regulate body temperature
Birds are ______________ ; they are the first group of vertebrates capable of regulating and maintaining a constant body temperature, independent of their surroundings.
exothermic
dependent
independent
endothermic
The true seals, such as the monk seal and elephant seal, differ from sea lions in that they _______________ have an external ear, have a relatively short neck, and use their rear flippers, rather than their front flippers, for propulsion.
none of these
do not
do
lost
Cetaceans propel themselves forward by moving their tail flukes in a/n ______________ motion. Sharks move forward by moving their caudal tail in a/n side to side motion.
up and down
inverted
motor like
submarine
Bony fish are called __________.
Osteichthyes
Eistichthyes
Chonrichthyes
Archrichthyes
Cartilaginous fishes are called
Arichthyes
Osteichthyes
Chonrichthyes
Eistichthyes
The largest sea turtle species is the ___________ while the smallest is the Kemp's ridley.
flatback
loggerhead
Crush from finding nemo
leatherback
All vertebrates are chordates, but not all chordates are vertebrates. Identify the characteristics as being applicable to a chordate or specific of a vertebrate. Presence of a dorsal nerve chord
Chordate
Vertebrate
All vertebrates are chordates, but not all chordates are vertebrates. Identify the characteristics as being applicable to a chordate or specific of a vertebrate. Presence of pharyngeal gill slits
Vertebrate
Chordate
All vertebrates are chordates, but not all chordates are vertebrates. Identify the characteristics as being applicable to a chordate or specific of a vertebrate. Development of a post-anal tail
Chordate
Vertebrate
All vertebrates are chordates, but not all chordates are vertebrates. Identify the characteristics as being applicable to a chordate or specific of a vertebrate. An outer covering of protective tissue
Chordate
Vertebrate
All vertebrates are chordates, but not all chordates are vertebrates. Identify the characteristics as being applicable to a chordate or specific of a vertebrate. Cephalization
Vertebrate
Chordate
All vertebrates are chordates, but not all chordates are vertebrates. Identify the characteristics as being applicable to a chordate or specific of a vertebrate. An endoskeletal system made of cartilage or bone
Chordate
Vertebrate
Unlike most marine mammals, otters rely on _____ for insulation.
circulatory system
dense fur
body weight
blubber
The ________________, such as penguins and pelicans, live throughout the oceans and travel great distances across the sea. The shore birds, including sandpipers and oystercatchers, have a greater dependency on terrestrial locations
sea birds
volcano birds
marsh birds
Ice birds
Instead of teeth, mysticetes have ___________ composed of keratin.
Spouts
baleen
Roots
Gums
