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30 Cards in this Set
- Front
- Back
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A reptile is a vertebrate that has...
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dry, scaly skin, lungs, and terrestrial eggs with several membranes
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what do these characteristics enable reptiles to do?
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to live their entire lives out of water
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why does a reptile shed its skin?
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the skin doesnt grow, so it must be replaced when the reptile gets larger
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where is the only place where reptiles don't live?
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very cold areas
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type of skin?
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tough and scaly
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ectotherms
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animals that rely on behavior to help control body temperature
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why are reptiles lungs more developed than amphibians?
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reptiles cannot exchange gases through their skin
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describe the double-loop circulatory system
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one loop brings blood to and from the lungs and one loop brings blood to and from the rest of the body
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the excretory system of a reptile is important because it helps it converse...
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water
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all reptiles reproduce by ______ fertilization
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internal
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oviparous
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laying eggs that develop outside the mothers body
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ovoviviparous
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keeps eggs in body, young are born alive
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reptiles produce what type of egg?
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amniotic egg
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amniotic egg
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named after amnion, oe of the four membranes that surrounds the developing embryo
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the development of this type of egg is considered one of?
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the most important adaptations to life on land
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order of lizards and snakes:
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squamata (scaly reptiles)
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characteristics of lizards:
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legs, clawed toes, external ears, movable eyelids
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characteristics of snakes:
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legless, earthworm size to 8 meters
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order of crocodilians
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crocodilia
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examples of crocodilians
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alligators, crocodiles, caimans, gavials
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where are crocodilians found?
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tropics and subtropics
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order of turtles and tortoises:
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testudines
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turtle refers to:
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members of this order that live in water
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tortoise refers to:
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those that live on land
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characteristics of turtles and tortoises:
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1. shell built into skeleton
2. habitats found: dry, wet, and inbetween 3. horny ridges on jaws |
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order of tuataras
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sphenodonta
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only surviving example from sphenodonta
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tuatara
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where are tuataras found?
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few small islands off the coast of new zealand
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characteristics of a tuatara
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lack external ears, remain primitive scales
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explain the "third eye"
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part of a complex organ on to of the brain, can sense the level of sunlight but function is unknown
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