Which statement regarding populations is true? It is possible to study most ecological processes at the individual level and then extrapolate that data to represent an entire population of organisms. When studying ecology, the terms "populations" and "communities" are interchangeable. Birth rates, death rates, as well as immigration and emigration rates are all features of a population. A population can sometimes consist of individuals of multiple species, living together in the same area. Individuals within a population can undergo evolutionary change.

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.

registered nurse (rn): the rn is responsible for carrying out both the medical plan of care prescribed by the physician as well as the nursing care plan developed by the nursing staff. the rn assesses each resident and modifies the nursing care as needed to meet the patient's needs.