14. the diagram shows a cross - section of different rock layers. according to the law of superposition, the…

14. the diagram shows a cross - section of different rock layers. according to the law of superposition, the rock layer above another rock layer is younger than the one below. according to the law of superposition, which numbered layer is the youngest? a. layer 1 b. layer 2 c. layer 3 d. layer 4 15. the diagram shows a model of the proposed relationships among some groups of mammals. which organism is most closely related to whales? a. pig b. bison c. camel d. hippopotamus

14. the diagram shows a cross - section of different rock layers. according to the law of superposition, the rock layer above another rock layer is younger than the one below. according to the law of superposition, which numbered layer is the youngest? a. layer 1 b. layer 2 c. layer 3 d. layer 4 15. the diagram shows a model of the proposed relationships among some groups of mammals. which organism is most closely related to whales? a. pig b. bison c. camel d. hippopotamus

Answer

Explanation:

Step1: Apply law of superposition

The law of superposition states that in undisturbed rock - layers, the layer on top is the youngest. In the rock - layer diagram, layer 1 is on top. So layer 1 is the youngest according to the law of superposition.

Step2: Analyze phylogenetic tree

In the phylogenetic tree of mammals, the closer the branching point of two organisms, the more closely related they are. Hippopotamuses and whales have a closer branching point compared to pigs, bisons, and camels with whales.

Answer:

  1. A. layer 1
  2. D. hippopotamus