Bothe b cells and t cells
Answer:
I can't see the text clearly my gurl
Answer: Listeria
Explanation: I looked up "what food pathogen is dangerous to the placenta" and this food pathogen was the main answer. I also double-checked different articles and they all said the same thing.
The three main functions of the human digestive system are to break food down into chyme for the body's use, to secrete and absorb nutrients and bodily fluids into the gastrointestinal tract or the blood, and to store and eliminate waste. The digestive system has major parts and accessory parts.