| Term | Definition |
|---|
| Dorsal nerve cord | Cord dorsal to the notochord |
| Dorsal nerve cord | Brain and Spinal cord develop from this |
| Pharyngeal slits | Openings in the pharynx (part of throat) of an animal |
| Pharyngeal slits | Important for filter feeding in invertebrate chordates |
| Pharyngeal slits | These have been modified in more evolved vertebrates for gas exchange, hearing, and jaw support |
| Dorsal nerve cord | Develops from the ectoderm |
| Dorsal nerve cord | The brain is at the anterior end of this |
| Pharyngeal slits | Found in embryos |
| Postanal Tail | Tail that extend beyond the anus |
| Postanal Tail | Provides propulsion for swimming |
| Cartilage | Sharks and Rays have a skeleton made of this |
| Single loop | Sharks and Rays have this type of circulation |
| Oviparous | Egg-laying |
| Ovoviviparous | The egg is kept in the mothers body until hatching |
| Viviparous | Live bearing |
| operculum | Gills of fish are covered by this |
| Bony fish | Swim Bladders |
| Frogs | Inner ear detects vibrations and pressure changes |
| Reptiles | Scales with keratin which helps prevent dehydration |
| Reptiles | Use the jacobson's organ to detect things |
| Amniotic | Type of eggs that reptiles produce |
| Amniotic | Type of eggs that birds produce |
| Endotherm | Kind of "therm" that a bird is |
| Ectotherm | Kind of "therm" that an amphibian is |
| Monotreme | Egg laying mammal |
| Marsupial | mammal that holds young in a pouch |
| Placental | Mammal in which the placenta forms during development of the embryo |
| Double loop | Type of circulatory pathway in amphibians, reptiles, birds, and mammals |
| Single loop | Type of circulatory pathway in sharks and rays |
| 2 | Number of heart chambers in fish |
| 3 | Number of heart chambers in amphibians |
| 3 or 4 | Number of heart chambers in reptiles (both) |
| 4 | Number of heart chambers in birds and mammals |
| Gills | Gas exchange structures in fish |
| Skin, Gills, Lungs | Gas exchange structures in amphibians |
| Lungs | Gas exchange structures in reptiles, birds, and mammals |
| Kidneys | Excretory structures in birds |
| Kidneys | Excretory structures in amphibians, reptiles, and mammals |
| Oviparous | Type of development in fish, amphibians, and birds |
| Ovoviviparous | Type of development in reptiles |
| Viviparous | Type of development in mammals |
| Swim bladder | Allows fish to ascend in the water |
| Tympanic membrane | How frogs hear |
| Myoglobin | The oxygen-transporting protein in muscle, resembling blood hemoglobin in function |
| Arms | Pectoral fins eventually gave rise to these |
| Legs | Pelvic fins eventually gave rise to these |
| Double | The meaning of the prefix Amphi |
| Pit | Snakes use this to sense heat |
| Echolocation | Bats use this to sense their surroundings |
| Reptiles | These have leathery eggs |
| Birds | These have brittle eggs |
| Lateral line | Fish use this for echo-location |
| hypothalamus | Part of brain used for regulating body temperature |
Combine with other sets
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