Please help which field studies all organisms that have existed, where they came from and how they are related

What is the name of the two satelites on mars

What is a group of organisms that are closely related and share similar characteristics

Anormal appearing couple is found to be heterozygous recessive for albinism both have the genotype aa the gene responsible for albinism is recessive to the normal pigment-producing gene what are the changes of their children being albino