Answer:
12. The integumentary system protects the body’s internal living tissues and organs, protects against invasion by infectious organism, and protects the body from dehydration.
13. The endocrine system is responsible for regulating a range of bodily functions through the release of hormones.
14. The lymphatic system is our body's 'sewerage system'. It maintains fluid levels in our body tissues by removing all fluids that leak out of our blood vessels. The lymphatic system is important for the optimal functioning of our general and specific immune responses.
15. The reproductive system is a collection of internal and external organs — in both males and females — that work together for the purpose of procreating, according to the Cleveland Clinic.
16. Excretory systems regulate the chemical composition of body fluids by removing metabolic wastes and retaining the proper amounts of water, salts, and nutrients. Components of this system in vertebrates include the kidneys, liver, lungs, and skin.
17. The immune system has a vital role: It protects your body from harmful substances, germs and cell changes that could make you ill. It is made up of various organs, cells and proteins.
