C<span>ommon names can be confusing because they vary among languages and from place to place , SO (D) hope this helps:)</span>
The above statement is true. The introduction of a speech usually should be prepared after the body. Speech preparation is the most important element to a successful presentation and the best way to reduce nervousness and tackle fear. This involves examining each step that is necessary to prepare for a speech. These steps include, selecting a topic, creating an outline, writing the body of the speech, among other steps.
Answer:
E) Hydrogen peroxide
Explanation:
Hydrogen peroxide is the substance that has a brown color and is detected by the spectrophotometer in our reaction.
Answer:
nucleus
Explanation:
The nucleus contains the cell 's DNA and directs the synthesis of ribosomes and proteins.