Similarities between mammals and reptiles.
October 30, 2020
1. The presence of an internal skeleton with a spine and skull. The presence of a chest.
2. Four pairs of homologous five-toed limbs.
3. 5 parts of the brain.
4. 2 circles of blood circulation.
5. Respiratory organs – lungs.
6. Excretory organs – kidneys.
7. Internal fertilization.
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