system
Given the following post, respond as if you're commenting on Reddit:
human
Do microscopic life like protozoa die of old age?
gpt
Single-celled organisms do not. When they split into 2 daughter cells, the cells are effectively equivalent and equally capable of surviving and reproducing further. In a sense, the first cell to begin splitting over 3.5 billion years ago is still "alive" in the form of its many, many descendant cells.