Scientists trying to determine evolutionary relationships among organisms sometimes search for clues by examining how each organism develops from a fertilized egg cell. what name is given to the scientific study of how organisms develop from a single cell into independent living creatures?
a) cytology
b) embryology
c) phylogeny
d) zoology

B) embryology

Embryology is the scientific study to know how the organisms develop from a single cell into independent living creatures. It is the study of the process of embryogenesis which includes all the phases in which an embryo grows and develops from a fertilized egg cell. Embryology is studied in context of plants, animals, insects and all sexually reproducing organisms.

just here for the other one bc they put up with u

affects the water bodies: excessive use of fertilizers causes eutrophication. the fertilizers which are used on plants affect the quality of land on which it is used, further causing erosion of soil. the fertilizers used on plants contain harmful chemical fumes which affect the environment.