Answer:
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria. To do this, certain molecules from the pathogen must be introduced into the body to trigger an immune response. These molecules are called antigens, and they are present on all viruses and bacteria
Explanation:
This is false. Photosynthesis is a plant cycle. Hope this helps!! :)
C
A community is a group of animals that coexist in the same environment
I think the answer would be
A) to transport water and food
