Question

In which investigation would it be BEST to use observational data obtained outside of a laboratory rather than empirical data from controlled experiments?
an investigation to determine the genetic code of a harmful bacteria

an investigation to determine the amount of oxygen that an animal consumes while sleeping

an investigation to determine the feeding habits of a species of bird

an investigation to determine the structure of a protein

Answer 1

There are different kinds of investigations. The investigation that would it be best be use in observational data obtained outside of a laboratory rather than empirical data from controlled experiments is;

• an investigation to determine the structure of a protein.

How do one determine the structure of a protein?

• The common way used to study protein structures is the use of X-ray crystallography.

In this method, solid crystals of purified protein are put into  an X-ray beam, and the pattern of deflected X rays is employed to know the positions of the atoms that is inside the protein crystal.

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