Answer:
it spanned between 66 million years ago and 56 milion years ago
Explanation:
I hope htis helped!
In surgery yes. it would hurt without it and nobody would get surgery and surgeons would have no job. <span />
Allergic responses to inhaled antigens occur when an individual is first sensitized to the antigen (i.e., the allergen), inducing an immune response and then has a subsequent exposure to the same antigen. The sensitization phase is characterized by <u>Induction of a CD4 T cell type II immune response</u>.
The process by which your body becomes sensitive to a particular substance is called sensitization. When your immune system becomes sensitized to an allergen, you can develop certain symptoms.
Antigens that can induce an allergic response are called allergens, and they are often derived from non-infectious or non-microbial sources.
To learn more about allergy and sensitization, here
brainly.com/question/8698396
#SPJ4
Answer:
Yes
Explanation:
Males have two x chromosomes (xx) and females have one x and one y chromosome (xy)
