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.
Introduction [edit]. The integumentary system consists of the skin, hair, nails, the subcutaneous tissue below the skin,and assorted glands.The most obvious function of the integumentary system is the protection that the skin gives to underlying tissues.