Answer: Research with embryonic stem cells may lead to new, more effective treatments for serious human ailments and alleviate the suffering of thousands of people.
Explanation:
Group 7A, the Halogens contain metalloids such as Astatine.
Human cells spend most of their time in interphase, where they do not divide. In interphase, a cell may grow, obtain and nutrients and metabolize them, read DNA, etc.
The polluted bacteria and algae interacts with fish and other aquatic wildlife, so they will be negatively impacted by that relationship in this case.
