Two groups of organisms with similar characteristics may share what?

The cluster of developing cells from conception until birth is called an

You are working in the lab and are working with the same element but with varying isotopes of the element. you are working with c-11, c-13, c-14, and c-15. what is the average atomic mass of this element? (use periodic table) a- 12 b-15 c-14 d-13

Describe how a non-resistant staphylococcus aureus bacterium can produce a bacterium that is resistant to methicillin