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Questions and Answers
What characteristic describes reptiles?
What characteristic describes reptiles?
- Breathe with gills
- Covered with tough, dry scales (correct)
- Warm-blooded
- Have feathers
What does it mean when a reptile is described as ectothermic?
What does it mean when a reptile is described as ectothermic?
Cold-blooded
How do reptiles breathe throughout their lives?
How do reptiles breathe throughout their lives?
With lungs
Describe the heart structure of reptiles.
Describe the heart structure of reptiles.
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What type of eggs do reptiles produce?
What type of eggs do reptiles produce?
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Study Notes
Characteristics of Class Reptilia
- Reptiles have tough, dry scales that protect their bodies and minimize water loss.
- They are ectothermic, meaning they rely on external environmental conditions to regulate their body temperature.
- Respiration is carried out through lungs throughout their entire life cycle, distinguishing them from amphibians, which may use different methods at different stages.
- Reptiles possess a three-chambered heart with a ventricle that is partially separated, allowing for some mixing of oxygenated and deoxygenated blood.
- They produce amniotic eggs, which are encased in a leathery shell, enabling them to lay eggs in terrestrial environments; most reptiles are oviparous, while some are ovoviviparous.
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