Answer:
physically trapping pathogens
Explanation:
Mucus is a thick slippery aqueous secretion that is secreted by the mucus membrane present in our body. The major production of mucus is by mucous gland.
The mucus in the digestive and respiratory gland helps in trapping the pathogen which comes inside the body through food or air. Mucus also contains a large amount of IgA antibodies which is called secretory antibody.
This antibody binds to the antigen and prevent it from invading the body tissue. Therefore mucus helps in trapping the pathogens.
B the deliverance of oxygen rich blood to muscles by the heart lungs and vascular system .. i believe
Bereavement (grief). <span>Bereavement is the state of loss when someone close to you has died. The death of someone you love is one of the greatest sorrows that can occur. Feelings of bereavement can also accompany other losses, such as the decline of your health or the health of someone you care about, or the end of an important relationship. </span>
Answer:
A. danger zone because I took cooking last year and I remember this
