Class Reptilia
3 of the 5 common characteristics of Reptiles
- Covered with tough, dry scales
- Ectothermic
- Breathe with lungs throughout their lives
- Three-chambered heart with a ventricle that is partially divided
- Produce amniotic eggs covered with a leathery shell, most oviparous, some ovoviviparous
3 of 6 common characteristics of Birds
- Endothermic
- Heart with 4 chambers
- Toothless bill
- Oviparous
- Covered with feathers
Skeleton of porous lightweight bones
Three of 5 characteristics of mammals
An organism that is internally warmed by a heat generating metabolic process
What is Endotherm
What is Amniotic Egg
Penguins and ostriches share this characteristic
They are flightless birds
Structure in a mammal that allows an embryo to be nourished with the mother's blood supply
Placenta
An animal that has no internal mechanism to keep themselves warm
What is ectotherm
2 of the 4 ways lizards are different from snakes
- Lizards have two limbs, snakes have none
- Lizards have ears and can hear, snakes cannot
- Lizards have the same type of scales all over their bodies, snakes have specialized scales on belly
- most lizards have eyelids and can close eyes, snakes have no eyelids
This characteristic of birds allows them to fly
Porous, lightweight bones and feathers
Specialized organs that produce milk to nourish young
Mammary glands
Organism where development occurs inside the female, offspring gain nutrients from the mother's placenta
Viviparous
The order that includes turtles and tortoises
What is Order Testudines
how are bird and reptile eggs different
leathery vs lime/calcium containing
Order of mammals that includes lions, dogs and bears
Order Carnivora
Development of organism occurs in an egg that is hatched outside female's body
Oviparous
A third eye on top of the head of the tuatara (the only living reptile in Order Rhynchocephalia/dinosaurs) and some lizards.
Parietal Eye
Two different types of bird feathers
Down and Contour
What makes a platypus unique from other mammals
it lays eggs, oviparous
Development of organism that occurs in an egg that is hatched inside female's body
Ovoviviparous