mammals

Mammals:

Four characterists of a mammal hair mammary glands a middle ear containing three bones a jaw that lets them chew their food.

Types OF MAMMALS: Monotremes: Are mammals thgat lay eggs.



Masupials are mammals that give birth to immature, underdeveloped live young that grow to maturity inside a marsupium, or pouch.



Eutherian: mammals give birth to live young that have completed fetal developmnet.

They are both organisms. ECTOTHERMS: To refer to orgnaisms whose body body temp. are determined by their surroundings environments. ENDOTHERMS: are organism that use the own heat to keep their tissue warm

REPTILE ANATOMY:

THEY BOTH HAVE A URETER AND LIVER. BUT THE REPITLIE HAS A BLADDER THE BIRD DOESNT.