Final answer:
Polysaccharides are long polymers made of monosaccharides linked through dehydration reactions.
Step-by-step explanation:
Polysaccharides are long polymers made of monosaccharides that have been linked through dehydration reactions. When monosaccharides join together, a water molecule is released, forming a covalent bond. Examples of polysaccharides include starch, glycogen, cellulose, and chitin.