Author Question: Marine regression occurs when ____. A)sea level falls with respect to a continent B)sea level rises ... (Read 77 times)

notis · **on:** Jul 13, 2018

Marine regression occurs when ____.
A)sea level falls with respect to a continent
B)sea level rises and the shoreline moves inland
C)marine rocks undergo deep-sea pressure and are transformed to metamorphic rocks
D)sea water mixed several different layers of sediment types
E)volatile elements go into solution in sea water and change the composition of the sedimentary rocks that are formed

Question 2

What was the distribution of trilobites in time and space during the Paleozoic? What niches did trilobites fill?

memslove · **Reply #1 on:** Jul 13, 2018

Answer to Question 1

A

Answer to Question 2

Trilobites lived from early Cambrian to the end of the Permian in all marine environments, from shallow to deep ocean settings, all around the world. Some were free swimming predators or filter feeders swimming throughout the water column.