What do we call a group of organs which work together to carry out a particular fuction?

What does resonance result in? quieter sounds frequency amplitude louder sounds

Which type of neuroglia is found outside of the brain?

Nasa scientists must work together to make sure that everything is correct and accounted for when launching a shuttle. besides a physicist, what other type of scientist would be in making sure that the shuttle has the appropriate type and amount of fuel to reach its destination?