Why do biologists say that living things are organized?

Biologists say that living things are organized as living things contain specialized and coordinated parts.All living organisms are made up of one or more cells, which are considered the fundamental units of life.The individual organisms can be organized into the following levels:  

cells, tissues, organs, organ system and organisms.

answer; i do believe that the correct answer is; ///mendelian genes are at specific loci on the chromosome and, in turn, segregate during meiosis;

oceans

indian ocean

pacific ocean

atlantic ocean

arctic ocean

southern ocean