Which of the following is a pattern of biogeography that supports the theory of evolution? a. closely related organisms that live in different environments are often very different from each other. b. analogous structures show common descent for unrelated species. c. closely related organisms that live in different environments don't show any different adaptations. d. analogous structures show that living in similar habitats doesn't lead to similar adaptations.

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.