DNA sequence
Biochemical analysis will use DNA sequences to understand, contrast and explain a certain point of an evolutionary process. DNA sequence are analysed by the structure of the chromosomes. Chromosomes are helpful to describe both the person and the ancestral history of the specific individual.
A week is the correct answer
Because they can usually predict mostly accurately up to 5-7 days which matches the answer for one week.
Hope that helps :)
Water is photolysed to produce electrons, H+ ions and O2.
The equations is 2H2O ->4H+ + 4e- + O2
The answer to this question is Homeostasis <span />