The prefix exo- means out of and the prefix endo- means taking in. how do these meanings relate to the meaning of exocytosis and endocytosis?

Greenthe fossil record is the history of life recorded byhuman observationgod.climatologists.remains of the past.

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