Read the list of words.

brain, glands, motor neuron, movement, muscles, sensory neuron, stimuli

the word belongs in a different group than all of the other words in the list.

just tryna figure out did i put it in wrong or something or the answer just wrong

it is because glands are not from outer body coordination

Explanation:

brain,motor neuron,movement,etc are components that involve in coordination like when somebody accidentally touches a hot surface or hear the sound of the door bell

while the glands involve in inner body coordination such as maintaining blood pressure,glucose level in blood etc

glands synthesis hormones that help keep the body in optimal condition

hope this help

chordata is the answer