Which genotype relative to the sickle-cell allele has the greatest reproductive success in regions where malaria is a common disease? a. the heterozygous genotype b. the homozygous recessive genotype c. the homozygous dominant genotype d. all genotypes have equal reproductive success

i think it is dna, i'm not totally sure but i think it might be.

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.