Which species (A-D): (a) occurs over the widest range of pH condition? Explain your answer

(b) can survive in pH condition below 4?

(c) appears to be least tolerant of acidic conditions?

Please help
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answer; polycythemia is the correct answer;

the glands which are associated with each description is given below:

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.

sex cells are usually half's then they find another half and make a fertilize egg