How can dominant-lethal alleles be passed down? (choose the best answer! ) a. they can’t, as they are lethal. b. they can be passed down if the individual with the lethal mutation lives to reproductive age and has a child. c. dominant-lethal alleles occur solely through spontaneous mutations, they are not passed down through generations. d. they can be passed down if the individual freezes their eggs or sperm to allow a child to be born with their genetics, even after they pass.

Match each law or principle to its description. 1. law of original horizontality sediment continues to spread in a flat plane until it hits an edge or runs out of material. 2. law of superposition the youngest strata are at the top and the oldest are at the bottom. 3. law of original lateral continuity sediment gets pulled down by gravity in a horizontal and flat layer. 4. law of cross-cutting or intrusive relationships if there is a fracture or intrusive feature seen in rock strata, it is younger than the rock strata.