To develop a molecular clock, you need to find which of the following?

2) the rate at which changes occur in a type of molecule
hope it helps

U. life is what you go through to become a better person. it makes you stronger, wiser, and more creative. it can be hard but its ok. because i believe everyone was put here for a reason. whether or not you know that reason you should always look towards the future and trust in god for a better tomorrow.be safe and blessed

The part of a scientific argument must be supported by valid data is evidence. this will make the correct answer choice b.