In its attempt to suppress allergic responses, the body releases several chemicals which have a role in mediating physical reactions. epinephrine, which interferes with vasoactive chemical release from mast cells, is instrumental in suppressing which type of hypersensitivity response? a. type ib. type iic. type iiid. type iv

a. Type 1 hypersensistivity response.

Explanation:

IgE antibodies related to an antigen are produced by stimulated B cells in type 1 hypersenstivty. IgE signalling results in mast cell degranulation and this leads to vasodilation.  Histamines, Leucotriens and Prostaglandins are some of the Vasoactive compounds released by Mast cells. Type 1 hypersenstivity is usually treated wit adrenaline (epinephrine).

Epinephrine increases peripheral resistance by stimulatingof α adrenoceptorsvascular thus improving blood pressure and coronary perfusion, reversing peripheral vasodilation, and decreasing angioedema. Stimulation of β2 receptors causes bronchodilation as well as increasing intracellular cyclic adenosine monophosphate production in mast cells and basophils, reducing release of inflammatory mediators and thus reducing the effect caused by mast cells.

ucd e e. rr. t t t t t t. to

answer: decrease

a limiting factor is the one which decrease the abundance, distribution and causes extinction of the population of species in a ecosystem. here, predators including hawks, owls and snakes are the limiting factor for the population of mexican free tailed bat.   although bats are nocturnal animals as they forge for food at night these predators also may remain active during night which can decrease the population of the mexican free-tailed bats. also, these bats eat only one type of insects that are moths. the food can also be a limiting factor as all 400 members are dependent upon same type of food needs that are moths. the decrease in the moth population can cause decrease in population size of the mexican free-tailed bats.

therefore, the scenarios will most likely to decrease the population size of the mexican free-tailed bats.