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Two things that biomedical has invented or innvated

When did stem cell research become known ? who discovered stem cell? what experiments or studies have been conducted so far?

Which of the following compounds would be expected to have the strongest ionic bonds? a)the compound that has b)the largest ions with the greatest charge c)the compound that has d)the largest ions with the least charge the compound that has the smallest ions with the greatest charge the compound that has the smallest ions with the least charge