animals 3 Flashcards
What are the major classes of vertebrates
-agnatha
-osteichthyes
-Reptilia
-Chondrichytes
-Amphibia
-Mammalia
-Aves
what are subphylum Agnatha
-jawless vertebrates like hagfish and lampreys
Things
to know about subphylum Agnatha
-true coelom from digestive tube
-all aquatic habitats
-detritivore
What are in the subphylum Chondrichthyes
-rays
-Rostirum(skates)
-sharks
Things to know about subphylum Chondrichthyes
-evolutionarily old
-cartilage skeleton(younger than bone skeleton)
-acute sense(lateral line system)
-sexual reproduction-live birth and eggs
What animals are in subphylum Osteichthyes
-seahorses
-moray eels
What to know about subphylum Osteichthyes
-largest vertebrate class
-have a swim bladder to maintain buoyancy
-acute sense
-ray finned and lobe finned
-some lay eggs and others have a yolk sac
-operculum
-some have lungs
-lobbed fine lead to class amphibia
What are in subphylum Amphibia
-approximately 4800 species:
-caecilians
-salamanders
-frogs
Things to know about subphylum Amphibia
-first vertebrates to colonize land
-still return to water to lay eggs and must keep skin moist for gas exchange
-tetra pods
What animals are in the subphylum Reptilia
snakes
lizards
alligators
turtles
things to know about subphylum reptilia
-ectotherms
-can be completely land bound
-scaly skin that helps retain moisture
-shelled eggs(cleidoic/amniotic)
animals in subphylum Aves
birds
things to know abt subphylum Aves
-hollow bones
-endotherms
-beaks are covered in reptile like scales
-calcium baked cleidoic/amniotic eggs
whats in subphylum mammalia
mammals
things to know about subphylum mammalia
-fur or hair
-mammary glands
-diaphragm- helps aid in breathing
-sebaceous glands
-Anuecleated red blood cells
