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.
<h3>How do one determine the structure of a protein?
</h3>
-
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.
Learn more about Investigation from
brainly.com/question/20193221
It’s important to know how things worked before, so then if we know how they work, we could change it or leave it the way it is. Sometimes what worked back then doesn’t work now.
The best and most correct answer among the choices provided by your question is the fourth choice or letter D. Most African countries have Unitary form of government.
A unitary state is a state governed as a single power in which the central government<span> is ultimately supreme and any administrative divisions (sub-national units) exercise only powers that the central </span>government chooses to delegate. The majority of states in the world have a unitary system of government<span>.
</span>
I hope my answer has come to your help. Thank you for posting your question here in Brainly.
The answer is letter d. a husband and wife pair, together
with their dependent children. Nuclear Family also known as elementary family,
in sociology and anthropology. A Nuclear family is a cluster of individuals who
are unified by bonds of trust and parenthood or guardianship and made up of of
a pair of grown-ups and their communally acknowledged kids.
