How would you know whether an organism is unicellular or multicellular

How do environmental factors influence genetic traits? a. environmental factors determine all genetic traits. b. environmental factors can determine if a genetic trait becomes a health issue. c. environmental factors are determined by genetic traits. d. environmental factors have no influence on genetic traits. select the best answer from the choices provided

The skeletal system performs a variety of functions that are crucial to maintaining life processes. what function is performed in the bone marrow, but not in the ossified bones of the skeleton? a oxygen transportation c mineral storage b. muscle attachment d red blood cell production

All living organisms are composed of a. only one cell. b. at least 100 cells. c. at least three cells. d. one or more cells.