Which kind of force acts within a molecule?

An intramolecular force

The correct answer is intramolecular force.

Explanation:

The force of attraction that prevails in between the bonds inside a molecule is known as the intramolecular force of attraction. These are of two types, that is, ionic bond and covalent bond.  

A bond between two ions that are produced due to the conduction of electrons from one to another is known as an ionic bond, and the bond between the two atoms produced due to the distribution of electrons is known as a covalent bond.  

i know insulin is primary but i dont know the others im sorry

explanation:

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.