Acorn

Acorn is a type of nervous system found in some invertebrates, like insects and mollusks, that controls their movement and responses to the environment. It functions similarly to a simple brain, processing sensory information and coordinating actions such as walking, feeding, and escaping from danger. Acorns consist of nerve tissue organized into clusters or cords, allowing these animals to react quickly to their surroundings. Despite being less complex than the brains of vertebrates, acorns are essential for these animals' survival, helping them perform necessary behaviors efficiently.