I am a single-celled, prokaryotic organism that lives in the large intestines of mammals
like humans. I reproduce asexually by binary
fission and can reproduce this way very fast

it is called an accent mark

ability to bond woth oxygen

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

1. is geographic distribution

2 is increasing complexity

3 is transitional forms