Bacteria and Archea are two domains of life (Eukarya is the third) which share some characteristics. <span>Both are microorganisms with almost the same shape, size, and appearance. They also share the structure of the cell-prokaryotic cell. This means that Archea and Bacteria are single-celled organisms that do not have a nucleus or membrane-bound organelles. Reproduction of both domains is performed by asexual reproduction with the process of binary fission, budding or fragmentation. Sometimes habitat of Archea and Bacteria is the same, like those in hot springs.</span>
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The radical in this question is OH.
The reason this will be a radical, is that the definition of a radical is the presence of an unpaired electron. This causes the radical to be unstable, desperately wanting to do something with the free electron that it has.
Oxygen has a charge of 2-, and Hydrogen has a charge of +1. When you pair them, you end up with a net charge of 1-, which is the presence of that unpaired electron. It will usually be written as: 
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Answer:</h2>
ESCs are derived from the inner cell mass of an embryo, called blastocyst
1) Colonial organisms require large areas with resources to sustain the entire colony, just as colonial people do. They are unable to grow in places that are sufficient to sustain a small number of organisms and if their population becomes to large, the colony collapses on itself. This is all visible in people as well.
2) Colonial organisms have greater safety due to their large numbers; however, unlike individual organisms, they are unable to sustain themselves with a smaller number of resources and migrating from one area to another is also more difficult for them.
3) A multicellular organism is more mobile and able to perform more functions in a better manner; however, this also leads to greater energy requirements than that of a single celled organism.<span />
