Etienne created this Venn diagram that compares the characteristics of proteins and carbohydrates.

A Venn diagram is a diagram used to compare and show the similarity between more than two variables.

In the given question, the Venn diagram of carbohydrates and proteins has not been provided but the similarities and unique feature between them can be explained.

The similar features are:

1. Both are considered macromolecules.

2. Both are biomolecules used as energy molecules by body

3. Both perform various roles in the body like involved in the structural entity.

4. Both can be involved in body repair.

Unique features of Proteins and Carbohydrates:

1. Proteins act as cellular signalling molecules can act as an enzyme.

2. Carbohydrates act as a storage molecule by an organism like in the form of glycogen in animals and starch in plants.