Myriapods
Millipede and centipede
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| Term | Definition |
|---|---|
| Myriapods | Millipede and centipede |
| Pan crustaceans | insects and crustaceans |
| crustaceans | lobsters, crab, shrimp, pill bugs Many have highly specialized appendages: walking legs located on thorax; swimming appendages on tail |
| Insects | Three regions: Head, thorax, post genital region complex internal organ system wings are extensions of the cuticle |
| Deuterostomia | Phylum Echinodermata and phylum Chordata Radical cleavage Blastopore forms the anus |
| Echinodermata | sea stars and sea urchins Slowly moving marine coelomates spiny covering on endoskeleton water vascular system bilaterally symmetrical larvae |
| Chordata | two groups invertebrates and vertebrates |
| What type of symmetry do adults exibit? | Bipentral symmetry |
| Characteristics of Chordates | Notochord Hollow nerve chord pharyngeal slits or clefts muscular, post- anal tail |
| Notochord | a rod that supports the body |
| Lancelets | cephaochordata: small fish like invertebrate chordates |
| Tunicates | Urochordata: sea squirts |
| Vertebrates | Chordates with a backbone skeletal system and complex nervous system Efficient at: capturing food and evading prey |
| Gnathostomes | Vertebrates that have a jaw and teeth include sharks, ray finned fish, tetrapods |
| Tetrapods | Gnathostomes with limbs four limbs a neck absence of gills ears |
| Amphibians | Most have moist skin that functions as gas exchange eggs lack a shell many live in land and water |
| Amniotes | Tetrapods that lay eggs with amnion, chorion, yolk sac Include reptiles, birds, mammals |
| Reptiles | Dinosaurs, turtles, snakes, Dry skin with scales lay shelled eggs on land internal fertilization |
| Mammals | Amniotes with hair and produce milk 3 major lineages - monotremes -marsupials - eutherians |
| Monotremes | Egg laying mammals Milk comes from glands on belly |
| Marsupials | pouched animals Ex. Kangaroos |
| Eutherians | Complex placenta complete development withing uterus Ex. Humans |