Lab Practical Flashcards
Phylum: Echinodermata
Sea stars, urchins, and cucumbers Marin animals Pentaradial symmetry in adults Water vascular system Lack of Cephalization
Class: Echinoidea
Phylum Echinodermata Globular or disc shaped No arms Compact skeleton called a test Movable spines Tube feet with suckers
Class Asteroidea
Phylum Echinodermata
Appendages radiate from a central disc
Tube feet with suckers
Madreporite aboral
Class: Holothuroidea
Phylum Echinodermata
Spines and arms absent
Tube feet with suckers
Madreporite internal
Phylum Chordata
Subphylums: Cephalochordata and Vertebrata
SubPhylum Cephalochordata
Lancelets
Marine
Segmented and elongated body
Notochord extends the legth of the body
SubPhylum Vertebrata
Vertebrates Notochord Dorsal hollow nerve chord Pharyngeal slits or pouches Endostyle or thyroid gland Postanal tail
Class Petromyzontida
Slender, eel like body
no paired appendages
cartilaginous skeleton
no jaws or scales
What Phylum does the Class Petromyzontida belong to?
Chrodata
SubPhylum Vertebrata
Class Chondrichthyes
Skates, Sharks, and Rays
Jaws present
Paired appendages and cartilaginous skeleton
No swim bladder and no operculum
What Phylum does the Class Chondrichthyes belong to?
Chrodata
SubPhylum Vertebrata
Class Actinopterygii
Bony skeleton
Swim bladder and operculum present
What Phylum does the Class Actinopterygii belong to?
Chrodata
SubPhylum Vertebrata
Class Amphibia
Skin with mucoid secretions
larvae usually aquatic
3 chambered heart
Respiration by lungs, gills, skin, and mouth
What Phylum does the Class Amphibia belong to?
Chrodata
SubPhylum Vertebrata
What Class does the Order Urodela belong to?
Amphibia
Order Urodela
Body with head, trunk, and long tail
2 pairs of equal size limbs
Some respire through the skin
What Class does the Order Gymnophiona belong to?
Amphibia
Order Gymnophiona
Body limbless and wormlike
Small scales present in some
Tail absent
What Class does the Order Anura belong to?
Amphibia
Order Anura
Frogs and toads
head and trunk fused, tail absent
Two pairs of limbs, hind-limbs elongated
Class Reptilia
Dry skin, keratinized scales Respiration via lungs 3 chambered heart - Except for Crocodilians Internal fertilization 2 pairs of legs
What Class does the Order Testudines belong to?
Reptilia
Order Testudines
Turtles Dorsal - Carapace Ventral - Plastron Jaws with/out teeth Vertebrae and ribs fused to the carapace
What Class does the Order Squamata belong to?
Reptilia
Order Squamata
Lizards and snakes
Males have paired copulatory organs
What Class does the Order Crocodilia belong to?
Reptilia
Order Crocodilia
Crocodiles and alligators
Skull is elongated and massive
4 chambered heart
Forelimbs with 5 digits and hindlimbs with 4
Class Aves
Forelimbs adapted for flight Light and hollow bones beak with no teeth internal fertilization - only left ovary and oviduct 4 chambered heart
Class Mammalia
Mammary Glands
Endothermic
4 Chambered heart
internal fertilization
InfraClass Ornithodelphia
“Bird Womb”
Oviparous, lack nipples
Duck billed platypus
InfraClass Metatheria
“Other Breasts”
Abdominal Pouch (marsupium)
Nipples inside marsupium
Kangaroos and koalas
InfraClass Eutheria
“True Breasts”
Placental, viviparous
Nipples Present
Whales, elephants, humans
