Chapter 11 Flashcards
Scales
Overlapping keratin structures found on reptiles and some fish.
Scutes
Non-overlapping, bony external plates found on turtles and crocodilians.
Venom
A toxin produced by an animal to inject into prey or predators.
Amnion
The outer membrane of an egg that contains fluid to provide protection from mechanical shock, abrasion, and dehydration of the embryo.
Incubation
The process of keeping eggs warm to promote development.
Plumage
The arrangement and types of feathers covering a bird’s body.
Diphyodonty
The condition of having two sets of teeth, a primary and a permanent set.
Placenta
An organ in placental mammals that provides nutrients and oxygen to the developing young.
key characteristics of Bird
Has feathers, a beak, lays eggs, and is endothermic.
key characteristics of Monotreme
Lays eggs but is a mammal (e.g., platypus, echidna).
key characteristics of Lizard
Has scales, external ear openings, and movable eyelids.
key characteristics of Tortoise
A land-dwelling reptile with a hard shell and no teeth.
key characteristics of Constrictor
A snake that kills prey by suffocation rather than venom.
key characteristics of Marsupial
A mammal that gives birth to underdeveloped young, which continue to develop in a pouch.
Label the parts of an egg on pg 373
amnion, chorion, allantois, yolk sac, and shell.
According to evolutionists, from what did birds evolve?
Evolutionists believe that birds evolved from small theropod dinosaurs.
What are special bones in birds?
Birds have hollow bones (pneumatic bones) that make them lightweight for flight.
