What types of natural barriers exist along the US-Mexico border?

Which statement about lethal genes is most accurate? question 5 options: they can be maintained in a gene pool by heterozygous carriers when the allele is recessive and the individuals reproduce. they cannot be maintained in a gene pool because they are always dominant. they cannot be maintained in a gene pool because the individuals do not survive. they can be maintained in a gene pool if the allele is expressed before reproductive age.

Which of the following statements from "letter from birmingham jail" does not specifically dr. king to establish credibility with the white clergymen? question 6 options: just as the apostle paul left his village of tarsus and carried the gospel of jesus christ to the far corners of the greco roman world, so am i compelled to carry the gospel of freedom beyond my own town. my dear fellow clergymen: while confined here in the birmingham city jail, i came across your recent statement calling my present activities "unwise and untimely." i have the honor of serving as president of the southern christian leadership conference, an organization operating in every southern state, with headquarters in atlanta, georgia.

Which of the following is a primary theme in harrison bergeron