Answer:
In biology, cell theory is the historic scientific theory, now universally accepted, that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells
Explanation:
B is the most effective and feasible, and it prevents the initial introdution of the species
Answer:Were all worthless in this world!!!!!
Explanation:This should be obvious, we only live and then die.