Evolution
Characteristics of Birds/Reptiles
Definitions
Ecology of Birds/Reptiles
Groups of Birds/Reptiles
100
These evolved from amphibian-like ancestors and were the first vertebrate to lay their eggs on land
What is a reptile
100
A large vertebrate with dry, scaly skin, lungs and terrestrial eggs with several membraes
What is a reptile
100
An animal that generates its own body heat
What is an endotherm
100
Many reptiles are in danger because their _______ is being destroyed
What is habitat
100
One of the surviving orders of reptiles is lizards and _______
What is snakes
200
Palaeontologists believe these evolved from extinct reptiles
What is birds
200
Reptile-like animals with a covering of feathers, two legs, and front limbs modified into wings
What is a bird
200
This is the type of egg laid by both reptiles and birds
What is amniotic
200
Reptiles are also hunted by humans for food, pets, or to have clothing made from this
What is their skin
200
The largest order of birds is the Passerine, or _______ Birds
What is perching
300
Some fossil evidence shows birds and dinosaurs may have evolved from a ___________
What is common ancestor
300
Extremely diverse populations of these animals are found in tropical areas
What is reptiles
300
A specialized structure in the birds' digestive system, located at the lower end of the esophagus
What is the crop
300
Fruit-eating birds help disperse seeds of trees and plants, because the seeds they eat are not always ________
What is digested
300
This is the number of surviving groups of reptiles
What is four
400
These dinosaurs evolved into the first bird ancestors
What is lizard-hipped
400
This is the single most important characteristic separating birds from living reptiles
What is feathers
400
Muscular organ in birds that helps in the mechanical breakdown of food by grinding it
What is the gizzard
400
Many birds migrate great distances, and usually use these as guides
What is stars
400
There are this many different orders of birds
What is thirty
M
e
n
u