Examples: The gene for seed shape in pea plants exists in two forms, one form or allele for round seed shape (R) and the other for wrinkled seed shape (r). A true-breeding round seed plant would be (RR) for that trait and a true-breeding wrinkled seed plant would be (rr).
Apart from that, the regulation of body temperature, preventing pathogens from entering the body, perspiration, generation of vitamin D, and protection from UV rays are some of the other functions of the integumentary system. Protection of the body from dehydration is also one of the important functions.
Confidence votes 84.9K. The 11 major organ systems and their main functions are: 1)The integumentary system supports and protects, regulates body temperature, makes chemicals and hormones, and acts as a sense organ. 2)The skeletal system supports and protects, makes movement easier (with joints and muscles), stores minerals and makes blood cells in the marrow.