Amphibians
How do larvae and adults breath.
Adult breath with lung and skin Larvae breath skin and gill
list 2 characteristic
Feet with claws, body covered with dry scales
What are wings used for
Flight and warmth
What do they use for breathing
Mammals are the most what Vertebrates
Complex
Circulatory system
closed circulatory, double loop and 3 chambered heart
Why do they have dry scales
to prevent loss of body water in dry environments
Characteristic of birds
Body covered with feathers, hollow and thin bone, toothless
Circulation system
Closed circulatory system, single loop, 2 chambered heart
They have spin made of what
vertebrae (small bones)
4 Problems with life on land
1.Drys out 2.Respiration 3.Reproduction 4.Temperature control
What is amniotic egg used for
Keep it from drying out, Protects embryo
what are the use for Air sac
Help bird meet its oxygen demand during flight
What kind of bodies do they have
Covered with scales, muscular bodies
What are the 3 different types of mammals
Monotrems, marsuial and placental
What kind of feet do they have
Webbed feet
What's the difference between turtles and tortoises
turtles are aquatic and tortoises are terrestrial
Hollow bones, to minimize weight
what does Buoyancy mean
Float
What is incisors, canines, premolars and molars, explain
Incisor are the front teeth for biting and cutting,Canines are next to incisor used for gripping and tearing. Premolars and molar are back teeth used for grinding and crushing
What''s the meaning of Amphibian
Double life
What are reptiles evolved from
Reptiles evolved From Amphibians
What are the 3 different types of beaks, and what are they used for
Spear-stabbing fish Hooked-tearing flesh Chisel-wood and bark
What kind of reproduction do they have, what type of eggs do they lay. Explain
Most are external, Jelly like eggs, female lays unfertilized egg in water male drops sperm on them
What is the differences between Monotrems, marsuial and placental. Explain and give example
Monotrems lays egg(Plautus), Marsuial have pouch(kangaroo), Plancetal has long gestation time(human)