CARBOHYDRATE HELPS TO IDENTIFY CELL TYPES.
Carbohydrates, proteins and lipids are all present inside the cell. Carbohydrates are usually attached to the cell proteins and lipids in order to enhance their functionality. These attached carbohydrates are typically used to identify cells.
There are so many examples for that in different areas, like biology experiment carried out in our lab recently.
Here's one link: https://www.creative-biogene.com/Services/Custom-Viral-Service/Replication-Competent-Virus-Testing.html
Answer: National park service
Explanation:
Yes, there is growing evidence that cognitive impairment is associated with cigarette smoking.