Why are mammals considered highly organized animals?

1. 4-chambered heart – leads to warm-bloodedness.
2. Outer ear – improved hearing.
3. Milky glands – feeding babies with milk.
4. 3 ossicles in the ear – improved hearing.
5. Diaphragm – increases breathing efficiency.
6. Hairline – improves thermoregulation.
7. Teeth deformation – allows you to eat different foods
8. Uterus – intrauterine development.
9. Alveolar lungs – increases the efficiency of breathing.
10. Forebrain cortex – leads to complication of behavior.



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