AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In order for a scientist to put fossils in order of sequence, which analysis would be most useful?
A
measuring the width and length of the homologous bones
B
identify which types of minerals are in each fossil
C
radiometric dating, which would show the absolute age of the fossils
D
biogeography showing where all the species lived at one time
Explanation: 

Detailed explanation-1: -To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events.

Detailed explanation-2: -Absolute Age Dating (or, Numerical Dating) Radiometric dating works because radioactive elements decay at a known rate. They act like ticking clocks, and let geologists measure how much time has passed since those elements were sealed into a particular mineral in a rock (learn more here).

Detailed explanation-3: -One of the most useful absolute dating methods for archaeologists is called radiocarbon dating. It works by measuring carbon isotopes, which are versions of the element carbon. All isotopes of carbon have 6 protons but different numbers of neutrons.

Detailed explanation-4: -Relative dating is used to arrange geological events, and the rocks they leave behind, in a sequence.

There is 1 question to complete.