I believe it would be number 4
Seek GOD while he’s here to be found, pray to him while he’s close at hand. Let the wicked abandon their way of life and the evil their way of thinking. Let them come back to GOD, who is merciful, come back to our God, who is lavish with forgiveness. (Isaiah 55:6-7 MSG)
Because the hydra has a nervous system characterized by a nerve net other than a cockroach
DNA profiling is a forensic technique in criminal investigations, comparing criminal suspects' profiles to DNA evidence so as to assess the likelihood of their involvement in the crime. It is also used in parentage testing, to establish immigration eligibility, and in genealogical and medical research. DNA profiling has also been used in the study of animal and plant populations in the fields of zoology, botany, and agriculture.