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Mammals (feeding and digestion (Insectivores (eat insects and other small…
Mammals
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Teeth
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premolars and molars
Are used to slice and shear meat from the bones of their prey, while crushing and grinding.
Incisors (insectivores)
Are long and curved, functioning as pincers in seizing insect prey.
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Reproduction
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placenta
provides food and oxygen, and removes waste
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Respiration
A diaphragm is a sheet of muscle located beneath the lungs that separates the chest cavity from the abdominal cavity where other organs are located.
As the diaphragm contracts, it flattens, causing the chest cavity to enlarge.
Once air enters the lungs, oxygen in the air moves by diffusion into blood vessels.
When the diaphragm relaxes, the chest cavity becomes smaller and air is exhaled.
Excretion
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Enable mammals to live in extreme environments, because they can control the amount of water in body fluids and cells.
circulation
the separation of oxygenated and deoxygenated blood makes the delivery of nutrients and oxygen more efficient
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