The correct answer is number 2. It introduces the topic and hooks the audience.
<em>The main purpose of the first paragraph of the speech It introduces the topic and hooks the audience. </em>
The Gettysburg address’ first paragraph, by Abraham Lincoln, introduces the topic and hooks the audience. The phrase that uses Lincoln is a biblical reference to “three score year and ten” which supposedly was the time humanity was supposed to live. Lincoln changed to “Four score and seven years ago…” to start its speech and catch people´s attention.
The concept of heredity is that genes are not randomly passed down. Well, technically they are but we use punett squares to predict the chances of passing certain traits. Because virtually all traits that are dominant are more common than recessive ones, and because all genes are not passed in a completely random way, it is not just pure chance, but calculated chance by which we can predict the probability of what genes are passed down. Hope this helps!
I think the answer is D. Only the second paragraph repeats the term "We should."