How do we know if bacteria are adapting and evolving into different species?

Proteins are made from amino acids. an amino acid has three parts that are joined to a central carbon atom. identify the three parts that create an amino acid.

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?