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>
Its d the cell wall. The plant cell contains a cell wall that is absent in a animal cell.
The correct answer is D. It is lost to the environment. Hope this helps!
Answer: know your common climate effects and how to limit them, i would recommend drawing a map of the area, identify spots of patchy dirt and figure out why, keep tabs on everything you see, pay attention to where everything grows best and everything grows less, try to compare and contrast why, pay attention to snow fall, make sure you’re char king for aspects, topography, exposure, shade, drainage and droughts as well.
Explanation: just did it