B osmosis is simplified by water dissolves stuff
Answer:
Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. New flu vaccines are released every year to keep up with rapidly adapting flu viruses.
Carbohydrates? I am not 100% sure tho
Plants absorb carbon dioxide from the air, combine it with water and light, and make carbohydrates, the process known as photosynthesis.
D I think sorry if it’s wrong ♀️