PLZ HELP Choose the best word to complete each sentence.
Worms are the simplest organisms that have a ____, which is made up of a knot of nerve tissue found in the _____. Worms also have _____ organs that provide information about the environment, such as light, touch, or vibration.
Worms are the simplest organisms that have a brain, which is made up of a knot of nerve tissue found in the head. Worms also have sense organs that provide information about the enviroment, such as light, touch, or vibration.
