You accidentally cut yourself working on an engineering project, and soon the cut begins to heal. Asexual reproduction
Sexual reproduction

What causes the phospholipids to organize themselves the way they do

Which blood cell spend most of their time in the lymphatic system?

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen