MAMMALIANS

MAMMALIANS 

- These are most advance animal in vertebrates
- Most Advance means better advancement for better survival
- There are some unique character of mammals are
* Presence Of hair On Body surfaces
* Presence Of External ear Pinna
* Presence of mammary gland to feed young one
* Having Diaphram muscle below thorasic cavity
* Having Vertebrae as backbone
- these animal are warm blooded animal
- Skin have Sebaceous and Sweat Gland
- they Have three bone in middle ear named as malleus , incus , stapes
- They Live about all habitat on earth
- External Nostrils
- their jaw are made up of single bone
- Four Chambered Heart
- having Two pair pentadactyl limb
- Hair made up of keratin protein
- They Are all heterodont, Diphyodont , thecodont animal
- Lower jaw made up of a bone called dentary
- This animal have closed type circulatory system
- Back bone in form of vertebrae made up of many bon
- There are about 5,000 Species
- Dicondylic Skull
- Total 7 cervical vertebrae present
- Fore and Hind limbs have digits
- Well Developed brain
- Fertilization internal
- Viviparous
- Sexes separate
- excretory organ kidney
- Blood Contain RBC with haemoglobin