Final answer:
Animals lack regenerative abilities due to biological differences compared to plants.
Explanation:
Animals cannot grow back parts of their body after being cut off primarily due to the difference in their biological structures compared to plants. While some animals like salamanders have limited regeneration abilities, most animals lack the necessary cell types like apical meristems found in plants that can initiate regrowth. Additionally, the way animals and plants handle cell growth, repair, and maintenance processes differ significantly, leading to the varying regenerative capacities between the two.
Learn more about Regeneration in animals and plants here:
https://brainly.com/question/37956060
