From a single fossil, a scientist can learn how the organism is related to others. Fossils are the preserved remains of organisms that are usually found in rocks.
Organisms must posses certain characteristics to ensure their preservation as fossils.
Most organisms that are preserved usually have hard parts.
Some climatic influence can also arrest decay and provide a platform organisms to be preserved wholly.
Fossils are used for relative dating of events in nature.
They can also be used to determine how an organism is related to another.
This is called phylogeny. It is the study of evolution and how organisms relates to one another.
Fossils are very good and useful phylogenetic tools.
<h2>Answer</h2><h2>The answer is: Addition of allolactose to the bacterial growth media should increase the speed at which the bacteria metabolize the sugar lactose.</h2>