Environmental Biology Lecture 30 1 Angiosperms Flowers a i 4 types of modified leaves 1 Sepals a b Function in protection while in bud Function in support when flower in bloom 2 Petals a Colored b Scent 3 Stamen 4 Carpel a Stigma b Style c Ovary 2 Animals a Kingdom animalia 1 3 million species i ii Metazoans b Characters of animals i Multicellular eukaryotes ii Heterotrophs Chemo 1 iii Cells supported by collagen 1 No cell walls Nervous tissue iv v Muscle tissue 3 Chordates vertebrates a Subphylum vertebrata i ii iii Vertebral column 1 Vertebrae Endoskeleton Cranium iv Closed circulatory system 1 Ventral heart 2 RBCs with hemoglobin v Kidneys Paired 1 2 Excretion 3 Filter blood i Amphibians reptiles birds mammals 4 Vertebrates tetrapods a 4 legged vertebrates 5 Vertebrates amphibians a 3 orders i ii iii Order urodela Order anura Order apoda b Class amphibia 4 legs Double circulation i ii iii Metamorphosis iv Respiration Cutaneous 1 2 Lungs 6 Vertebrates amniotes a Amniotic egg shelled egg i ii Prevents dehydration Helps oxygen absorption b 4 extraembryonic membranes i ii iii iv Amnion Allantois Chorion Yolk sac 7 Vertebrates reptiles a Class reptilia i Lepidosaurs 1 Snakes lizards a Corn snake 4 5 feet in length b Snakes Lack legs Lack eyelids Lack external ear openings Jacobson vomeronasal organ c Alabama snakes 50 or so species 6 are venomous i i ii iii iv i ii 1 5 pit vipers 3 rattlesnakes Timber canebrake rattlesnake a b Eastern diamondback rattlesnake c Pigmy rattlesnake d Copperhead e Cottonmouth f Eastern coral snake g Eastern kingsnake 2 Pit vipers a Pits b Triangular head c Vertical pupils Longest native snake iii 2 Tuataras ii Archosaurs Turtles 1 2 Crocodilians and birds iii
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