Four sediment cores were removed from the floor of an inland sea. The sea was in existence, off and on, throughout the entire time that terrestrial life has existed. Researchers wish to locate and study the terrestrial organisms fossilized in these cores. In the diagram, the cores are illustrated as vertical columns, with the top of the column representing the most recent strata and the bottom representing the time when land was first colonized by life. If the arrows indicate locations in the column where fossils of a particular type (see key) first appear, then which sediment core provides the best support for the current model of the evolution of terrestrial organisms?
A) core A
B) core B
C) core C
D) core D

Question

Four sediment cores were removed from the floor of an inland sea. The sea was in existence, off and on, throughout the entire time that terrestrial life has existed. Researchers wish to locate and study the terrestrial organisms fossilized in these cores. In the diagram, the cores are illustrated as vertical columns, with the top of the column representing the most recent strata and the bottom representing the time when land was first colonized by life.  If the arrows indicate locations in the column where fossils of a particular type (see key) first appear, then which sediment core provides the best support for the current model of the evolution of terrestrial organisms?
A) core A 
B) core B 
C) core C 
D) core D

Quizplus · Accepted Answer

The Answer of Four sediment cores were removed from the floor of an inland sea. The sea was in existence, off and on, throughout the entire time that terrestrial life has existed. Researchers wish to locate and study the terrestrial organisms fossilized in these cores. In the diagram, the cores are illustrated as vertical columns, with the top of the column representing the most recent strata and the bottom representing the time when land was first colonized by life.  If the arrows indicate locations in the column where fossils of a particular type (see key) first appear, then which sediment core provides the best support for the current model of the evolution of terrestrial organisms?
A) core A 
B) core B 
C) core C 
D) core D

Four Sediment Cores Were Removed from the Floor of an Inland