Answer: mutations that natural selection can work on. 4.) How do scientists calibrate a molecular clock? ... they compare the number of positive mutations that have occurred in a particular species with the number of negative mutations that have occurred
Explanation:
Answer:
sublimation
Explanation:
when a mixture of solid ammonium chloride and solid chloride is heated the ammonium chloride changes it's state from solids to vapour.
mark me as the brainliest please if you'd like
Answer: This is true, scientists do follow seismic waves.