Someone who is heterozygous for recessive allele that cause a disorder

Someone who is heterozygous for a recessive allele that codes for a disorder of some sort will not express the disorder in his or her genotype, but would be considered a carrier of the allele, and could pass it on to his or her offspring if the other parent is either heterozygous or homozygous for the recessive allele.

mountains can affect the climate of nearby lands. in some areas, mountains block rain, so that one side of a mountain range may be rainy and the other side may be a desert. much of airborne moisture falls as rain on the windward side of mountains.

explanation:

b. lithosphere, asthenosphere, mesosphere   is the answer most likely