They are formed into polymers.
11 Systems would happen to be
- Muscular
-Endocrine
-Circulation
-Lymphatic
-Respitory
-Integumentary
-Repreductive
-Urinary
-Digestive
The difference between plant cells and animal cells is that most animal cells are round whereas most plant cells are rectangular. Plant cells have a rigid cell wall that surrounds the cell membrane. Animal cells do not have a cell wall.
Means they are related through a common distant ancestor. This shows that these structures (morphology) are homologous. They all have 7 neck (cervical) vertebrae, but giraffes cervical vertebrae are elongated compared to that of humans due to their adaptation as browsers .