Describe/Define the different population factors that affect our world population

Population growth is based on four fundamental factors: birth rate, death rate, immigration, and emigration.

small, big, or no change could occur in the phenotype. it could cause something as simple as a cats ears to curl backwards or something as frighting as death. it could also occur in the protien-coding area and have an effect on that but no effect on the amino acids. what has to occur is a changing in the hox gene or the control gene.

yes it is weird but true