Question

1. what are the oldest life forms on earth?

Explanation:

The oldest life forms on Earth are generally considered to be prokaryotes, specifically bacteria (like cyanobacteria) and archaea. Fossil evidence and geological studies show they existed around 3.5 - 4 billion years ago.

Answer:

The oldest life forms on Earth are prokaryotes, primarily bacteria (e.g., cyanobacteria) and archaea, with fossil/geological evidence dating them to ~3.5–4 billion years ago.