If i remember correctly asexual reproduction came first because without asexual reproduction the cells would not have been able to produce other cells so what few cells there were reproduced asexually and then it evolved onto sexual reproduction later in development
Well you do not have a set of choices but here is an example!
Sweating, your body releases water to cool down the skin of your body!
Chordates, or members of phylum Chordata, possess a backbone.
