Because if you don’t you may die or get seriously hurt. Or just the investigation will go wrong and get unclear or wrong answers
Answer:
The correct answer is- Immune system
Explanation:
There are physical, chemical and immunological barriers present in our body which helps us to protect from the foreign antigen. They all assist each other and helps in pathogen removal from our body.
The physical barrier includes skin, gastrointestinal tract, respiratory tract, etc which do not allow the microbe to enter the body. Chemical barriers include tear, saliva, acid in the stomach which kills microbes on the body surface.
Immune cells like macrophages, B cells kills microbes when it gets in the body. Lymphatic system also contain immune cells and helps in microbe removal.
So the immune system is assisted by physical barrier, chemical barrier, and lymphatic system.
Not really some take faster time
Yes, short answer, I can not give you the specifics (consult your biology textbook)
By looking for promoters that are binding sites for RNA polymerase. It's an open reading frame and introns as well as exons
