I don't know. Can someone else please answer it!!
The skeleton system is important to the human body because it keeps the human body upright and protects the body's internal organs against injuries.
Oxygen is important to human body because it aid in breathing
Oxygen is important to human body because it aid in breathing
The human body needs nitrogen for the proper digestion of food and growth. Nitrogen is extremely important in the development of the human fetus.
heart
blood
Oxygen plays a massive role in the human body. Oxygen is responsible for delivering nutrients to the cells in the human body.
Respiration
immune system
The most important substance for maintaining a stable thermal environment within the human body is water.Water is the most important substance for maintaining body temperature.
Oxygen plays a massive role in the human body. Oxygen is responsible for delivering nutrients to the cells in the human body.
Important electrolytes in the human body are potassium, sodium, and calcium.