reptiles

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origin and evolution of reptiles

amniotic egg- allows animals to produce larger offspring. Produced by reptiles, birds, and some mammals

structures

embyro

amniotic cavity

allantois

yolk sac

albumen

air space

shell

*reptiles have much dryer skin than amphibians, has keratin*

characteristics of reptiles

strong, bony skeletons and toes w/ claws

ectothermic metabolism

dry, thick skin

amniotic eggs

well developed lungs

partially divided heart

internal fertilization

reptile brain

olfactory lobes

cerebrum

optic lobe

cerebellum

medula oblongata

endotherms vs ectotherms

thermal regulation- process by which

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types of reptiles

types of reptiles

turtles and toroises

crocodiles and alligators

lizards and snakes

tuataras

characteristics of turtles

has a shell

can protect them selves

lays eggs

carapace v.s. plastron

characteristics of alligators and crocodiles

live in tropical and subtropical regions

carnivorous

feed on fish or turtles or animals that come to the water to drink

see and breath above water while also being underwater due to eyes and nose on flat head

characteristics of snakes and lizards

upper jaw is loosely joined

structurally diverse of the reptiles