i need more information what are the choices?
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: 
Answer:
Option C
Explanation:
The answer to this question is option C or "the leaves." The major site of photosynthesis in a plant is where the chloroplasts are located because it contains chlorophyll which is where photosynthesis takes place, chloroplasts is in all the green parts of a plant stem, leaves, and even the branches but it takes place mainly in the leaves of a plant because there is more leaves then roots or branches.
Hope this helps.
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Answer: C. Above the kingdom level
Explanation:
Hierarchical classification can be defined as the system of grouping living beings according to the level or orders. Domain secures the highest taxonomic rank in the biological hierarchical classification system. This lies above the Kingdom level. The life forms are classified into three domains, which are Archea, Eukarya and Bacteria.
