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nervous and muscular systems
The respiratory system has primary responsibility for breathing, but it could not accomplish this function without the skeletal, muscular, nervous, and circulatory systems.
the respiratory and cardiovascular system work together/
An organ is more than one type of tissue working together to accomplish a certain function.
systems approach
systems
nervous and muscular systems
muscles help to tie bones of the skeleton together and supplement the skeleton in supporting the body against the gravity.
distinguish between symptoms and causes of problems
Pelican makes a very secure waterproof breifcase that locks tightly.
The respiratory system has primary responsibility for breathing, but it could not accomplish this function without the skeletal, muscular, nervous, and circulatory systems.
Body systems work together to keep the body healthy and the body systems are interdependent (they rely on each other).
That is the organismal level. Many organisms have several organ systems.
Electronic Stability Control systems on vehicles do not help you take corners but it will help you maintain control of your vehicle and prevent accidents in dangerous conditions.
em work together
That took about a half billion years of trial and error to accomplish.
respiratory and cardiovascular systems