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29 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Three branches of Deuterostomes: |
Echinoderms hemichordates and chordates |
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Characteristics of deuterostomes |
Triploblastic coelomate internal skeletons includes large animals Complex behaviors |
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Echinoderms main characteristic |
Adults have no head example; starfish |
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Three body parts of the hemichordates |
Proboscis, collar, trunk |
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Acorn worms: |
Catch prey with the proboscis Gas exchange through pharyngeal slits |
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Two species within the hemichordates |
Acorn worms Pterobranchs |
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3 chordate clades |
Lancelet tunicates vertebrates |
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All chordates have these 3 derived structures at some stage: |
-Dorsal hollow nerve cord -tale that extends beyond the anus -dorsal supporting rod (notochord) |
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Characteristics of lancelets |
Notochord persists throughout life |
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Characteristics of tunicates |
-Adults are sessile -form colonies by asexual budding -body enclosed in a tough tunic of proteins in a complex polysaccharide |
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5 Key features of vertebrates |
1. Vertebral column replaces notochord 2. Interior skull with large brain 3. Rigid internal skeleton 4.internal organs suspended in coelom 5. well-developed circulatory system |
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Why are vertebrates widely diversified |
Internal skeleton provides support for muscular system, which receives oxygen from circulatory system, and is controlled by central nervous system |
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Hagfish characteristics |
Sister group for vertebrates produces slime for defense change sex from year to year |
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Phylogeny of living vertebrates |
Hagfish lampreys chondrichthyans Ray finned fish coelacanth lung fishes amphibians amniotes |
Harry loves catching Ron cooking lobster after astronomy |
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Tetrapods |
Four-legged vertebrates that evolved from lobe-limbed vertebrates |
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Characteristics of amphibians |
They lose water easily through the skin an egg's dry out if exposed to air |
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Three types of amphibians |
Caecillians (wormlike) Anurans (frogs and toads) Salamanders |
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Neoteny |
Keeping juvenile chararistics throughout adulthood such as gills |
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Viviparous |
Amphibians that Give birth to well-developed young no egg |
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Amniotic eggs prevent... |
Water loss but allow gas exchange |
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Phylogeny of amniotes |
Tuataras squamates Turtles crocodilians pterosaurs ornithischians Sauropod Theropods Mammals |
Albus teaches students to create potions, only Snape teaches malfoy |
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Lepidosaurs include... |
Squamates and tuataras |
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Archosaurs include... |
Crocodilians pterosaurs dinosaurs and birds |
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Two groups of therapods |
Palaeognaths (flightless) Neognaths (can fly) |
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five key features of mammals |
Highly differentiated teeth sweat glands mammary glands hair four chambered heart |
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Mammals are divided into two groups: |
Prototherians Therians |
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Coevolution began by |
Grazing and browsing which helped transform terrestrial landscapes |
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Two clades of the primates |
Prosimians and anthropoids |
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One example of neoteny in the homo lineage |
Brain size increasing while jaw muscles decreased in size |
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