Explanation:
because the pressure exerted by artery is more than that of vein due to its narrow lumen and thick walls...causing it difficult to clot.
Hello!
2.Allergens cause an allergic reaction. T<span>heir immune system produces antibodies, that are triggered depending on what substance it is.
3.Asthma is classified as an allergy because substances may trigger asthma and sometimes they do not, just like how certain substances cause the allergies.
Hope this helped!</span>
Answer:
A. 2
Explanation:
I was wrong the first time, I wasn't thinking of jupiter for some reason. sorry!
