Jack is eating a diet that will him build muscle, so he eats a diet high in this. before a race, ruth drinks a beverage full of this biomolecule to get energy. these molecules in olive oil will ruth’s body store long-term energy. elizabeth has been advised to go for genetic screening to detect any abnormalities in her unborn child. pairs nucleic acids arrowboth carbohydrates arrowboth fats arrowboth proteins arrowboth

The following are the correct answers:
1. PROTEIN.
Protein is one of the macro molecules that are needed by man to stay health. In the body, proteins are used to build new cells and tissues, which are used to replace the old ones. Thus, to build new muscles cells, Jack will have to eat a lot of proteinous foods.
2. CARBOHYDRATE.
Carbohydrate is also one of the macro molecules that humans need to sustain good health. The major function of carbohydrate in the body is production of energy. Energy produce by carbohydrate is used to drive the life activities that are taking place in the body. In order to have enough energy for the race, Ruth has to take a drink that have plenty of carbohydrates.
3. FATS.
Fat is part of the macro molecules needed by man for optimal health. Fat also produce energy in the body. The amount of energy produced by one unit of fat is much more than that produce by one unit of carbohydrate, but the fat can only be used as energy by the body when it is converted to carbohydrate in form of glucose. Fat stores long term energy in the body.
4. NUCLEIC ACID.
Nucleic acid is the building unit of DNA, which is the responsible for inheritance in humans. Any alteration in the arrangement of nucleic acid in the body can cause different types of medical disorders. During pregnancy, the new fotus can be checked for the presence of abnormal nucleic acid. 

Distillation.  distillation is the correct answer.