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
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15
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
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15
Marine reptiles are ectothermic. What does ectothermic mean?
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15
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
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15
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.
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15
Cartilaginous fishes are called
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lifesaver
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seesaw
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shark
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thief
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15
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.
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15
Bony fish are called __________.
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15
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
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15
Unlike most marine mammals, otters rely on _____ for insulation.
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banana
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seesaw
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fairy
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thief
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eraser
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rocket
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rocket
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thief
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15
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
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15
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