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biology
mammalia
body | Answer |
---|---|
types based on ways of birth | prototheria metatheria eutheria |
reproduction | sexes are separate internal fertilization and give birth to young ones or some lay eggs |
voice apparatus | larynx and epiglottis |
heart and circulation | 4 chambered heart and warm blooded |
endo and exoskeleton | endo is ossified and exo is not present just skin having hairs and glands three bones in ear malleus incus and stapes |
coelom | 2 cavities anterior smaller thoracic cavity and posterior larger cavity |
body division and limbs | head neck trunk tail 2 pairs of pendactyl limbs that are variously shaped |
mammory glands | for feeding milk to young ones |