Whether or not the article describes persenal experience is the major determining factor in this question. If the article tells the story of another, it is secondary, if the article was written by someone who is recounting on their experience, it is first peron. Hope this is clear and understandable.
<span>Evolution is a major force in shaping modern classification methods.</span>
Answer:
Natural selection leads to evolution.
Enzymes in a reaction act as catalysts. They speed up the chemical reaction process.
