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.
Answer:
c.Fossil fuels are considered renewable resources.
When the mouth opens wide and your chin drops, the movement is known as depression movement, which occurs in the <span>temporomandibular joint. This movement occurs naturally when we are surprised or shocked due to a certain event, it is also considered to be a common facial expression.</span>
The presence of buds on the nodes is a feature among the following features that helps to identify nodes on a stem. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer comes to your help.
Well, they're never stable because of the footprint we leave on Earth. We pollute the Earth without meaning to. So it's definitely either fragile, or adaptable. Hope this helps!
