Person who has allergies has a compromised immune system because the body's immune systel O attacks its healthy cells.
overreacts to an antigen.
steals nutrients from healthy cells.
responds to mutagens.

b overreacts to an antigen

Explanation:

but there is no

i guess you forgot putting it.

answer: grassland biomes are closer to the equator and receive more rain.

grasslands are biomes that are dominated by grasses rather shrubs and trees. savanna are biomes that exhibit grasses, shrubs and small tree as vegetation. grasslands are located near the equator of the earth. these are found in north america. savanna biomes are found in africa, south america, australia and india. grassland exhibit moderate climatic conditions, it receives   amount of rainfall higher than savanna.   therefore, savanna exhibit dry and hot climatic conditions.