Asediment core is removed from the floor of an inland sea. the sea has been 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 this core. the core is illustrated as a vertical column, with the top of the column representing the most recent strata and the bottom representing the time when land was first colonized by life. in order to assign absolute dates to fossils in this sediment core, it would be most if
a. volcanic ash layers were regularly interspersed between the sedimentary strata.
b. the sediments had not been affected by underwater currents during their deposition.
c. metamorphic rock strata alternated with sedimentary rock strata.
d. we knew the order in which the fossils occurred in the core.
e. fossils throughout the column had equal ratios of a parental radioisotope to its daughter isotope.
Answers: 3
Biology, 22.06.2019 03:00
Which sentence best describes the relationship between chlorophyll and the chloroplast? a.) chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.
Answers: 2
Biology, 22.06.2019 07:00
What terms describes being out of water after being submerged
Answers: 1
Biology, 22.06.2019 09:40
Explain how paleontologists use trilobite fossils as index fossils for various geologic time periods.
Answers: 1
Biology, 22.06.2019 13:00
True or false multiple lane changes must be done individually going through the same procedures for each lane change
Answers: 1
Asediment core is removed from the floor of an inland sea. the sea has been in existence, off and on...
Health, 11.02.2021 01:00
Chemistry, 11.02.2021 01:00
Social Studies, 11.02.2021 01:00
Geography, 11.02.2021 01:00
Mathematics, 11.02.2021 01:00
Mathematics, 11.02.2021 01:00
Health, 11.02.2021 01:00
Mathematics, 11.02.2021 01:00
Mathematics, 11.02.2021 01:00
English, 11.02.2021 01:00