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.
The integumentary system is the organ system that protects the body from various kinds of damage, such as loss of water or abrasion from outside.The system comprises the skin and its appendages (including hair, scales, feathers, hooves, and nails).he integumentary system has a variety of functions; it may serve to waterproof, cushion, and protect the deeper tissues, excrete wastes, and regulate temperature, and is the attachment site for sensory receptors to detect pain, sensation, pressure, and temperature.