1 is the answer because it’s talking about chemical
I think its e. coli, because it’s bacteria that lives in the intestines of most healthy people and animal. e. coli can also cause serve abdominal cramps, bloody diarrhea, and vomiting
Answer:
Fission Budding
Explanation:
I hope this helps. I think it may be right.
B. It is rigid it is important becuase it keeps the plants structure and it allows the plant to stand upright.It is not a fluid and because it is rigid it does not stretch.It cannot be C. because the cell wall is made of cellulose and it is a non living maerial therefore it cannot be alive
Answer:
Chemicals that are secreted from antigen-presenting cells then activate helper T cells.
Explanation: