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.

Explanation:

the way that the mass of carbon can be conserved through cellular respiration is through a process/law called the law of conservation of mass which even tho it undergoes a process, mass is not be destroyed or changed