What are 3 environmental factors in the natural reserve that affect which mice in a population survive to produce. And do these factors affect the genotype or the phenotype of the mice populations or both?

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]