A monosaccharide is the monomer of a carbohydrate. Carbohydrates, such as sugars and starches, store energy. Some monosaccharides are isomers .This means that they have the same chemical formula but a different arrangement of atoms. An example of such a pair of isomers is glucose and fructose.
For the answer to the question above, the most successful tool they invented was hand axes made with sharpened stones and wood. They can hunt and chop animals in the wild. They can also use it for chopping trees. I hope this helps
