Section 4 Reptiles Flashcards
What is a reptile
An ectothermic vertebrate that has lungs and scaly skin
True or false: ancestors of modern amphibians were the first vertebrate adapted to life completely out of water
False: the answer is reptiles were the first to be adapted to life completely out of water
Where do reptiles get their oxygen from?
The air , they breathe completely with lungs
What things in a reptile are adapted to conserve water?
Their skin, kidneys and eggs
What are two functions of the reptiles scaly skin?
The dry tough skins protect reptiles and helps keep water in their bodies
What are some examples of reptiles ?
Snakes, lizards, turtles and alligators
How do kidneys help reptiles from losing water?
The kidneys of reptiles concentrate the urine so that the reptiles lose very little water when they filter out waste
Does a reptiles egg have a shell that keep the embryos moist so it doesn’t dry out
Yes it has a amniotic egg which is an egg that has a shell and internal membranes that keep it moist
What is a characteristic that both lizards and snakes have?
Skin covered with overlapping scales
What happens when lizards and snakes grow? What do they shed?
Their skin and scales , they replace the worn ones with new skin and scales
What type of climate do most lizards and snakes live in?
Warm areas
How do snakes differ from lizards
Lizards have 4 legs with claws on their toes , snakes have no legs . Lizards have long tails external ears and moveable eyelids and 2 lungs. Snakes have streamlined bodies no external ears, no eyelids and only one lung
Are most lizards carnivores?
Yes but a few are herbivores.
How do lizards catch their prey?
They jump on it or they have adaptations like sticky tongues adapted for snaring insects
Are all snakes carnivores
Yes they feed on small animals such as mice