Touching Wounds
Explain: Well especially if ur hands are dirty touching ur wounds can lead to an infection to where the wound is, so this one is likely to spread pathogens
I believe the answer is echinodermataechinodermata and Chordata have a very similar embryonic development; tirhe first opening (the blastopore) becomes the anus, while in protostomes it becomes the mouth and several similarties in the formation of skeleton.It is predicted that Echinodermata and Chordata evolved from the same ancestor