The answer is Integumentary System. it is the organ framework that shields the body from different sorts of harm, for example, loss of water or scraped spot from outside. The framework involves the skin and its limbs.
The integumentary system comprises of the skin, hair, nails, organs, and nerves. Its principal work is to go about as a hindrance to shield the body from the outside world. It additionally capacities to hold body liquids, ensure against ailment, dispense with squandering items, and direct body temperature.
Answer: Positive charge of 1
Explanation: This is because it is believed that it is from the charge of the quarks that make up the nucleons which are protons and neutrons.
Biotic factors are all of the “alive” factors in the environment which includes all living organisms. Abiotic factors are opposite, are “non alive” factors which may include water,soil,air,rocks,and etc.