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MAMMAL CHARACTERISTICS BY: ARIANA MEJIA

MAMMAL CHARACTERISTICS

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MAMMAL CHARACTERISTICS. BY: ARIANA MEJIA. What is a Mammal?. Mammals are endotherms Able to live in almost every possible environment on earth. Ex: polar bears of the artic, tigers in tropical jungles, and dolphins that roam the atlantic ocean. Mammals have hair. Only mammals have hair - PowerPoint PPT Presentation

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Page 3: MAMMAL CHARACTERISTICS
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Mammals nurse their youngMammals have several kinds of glands that

produce saliva, sweat, digestive enzymes, and hormones

Mammals feed their young from mammary glands

A mammary gland secretes milkMammals nurse their young until they are

mature enough to find food

Page 6: MAMMAL CHARACTERISTICS

Respiration and Circulation

Mammals need a high level of energy for heating and cooling their bodies

Energy level is sustained when large amounts of oxygen enter the body and reach all of the cells.

Mammals accomplish this by using a diaphragmA diaphragm is the sheet of muscle that is located

beneath the lungs.It separates the chest cavity from the abdominal cavityMammals have four chambered heartsOxygenated blood is separated from deoxygenated

blood.

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