Answer:
Controlled group does not receive the treatment. It used as a benchmark to measure how different tested subjects affected the result of the experiment.
For example, the famous experiment of whether plants grow faster with music in one room and without music in the other room. The plant in the no music room is the controlled group.
Answer:
Answer to question 1;
In biology, evolution is the change in the characteristics of a species over several generations and relies on the process of natural selection. The theory of evolution is based on the idea that all species are related and gradually change over time.
Explanation:
Codominance.
Because in the codominance, both the traits of the brown hair and white hair is expressed. So it carries both the traits, regardless of whether it is recessive or dominant.
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This is a combustion reaction because products of the reaction include carbon dioxide and water.