The movement of a sensitive plant’s leaves is rapid and independent of growth, whereas the directional movement of a seedling is attributed to growth; if growth is hindered, the seedling will not exhibit movement.

Plants, such as the sensitive plant, respond to touch through rapid movements of their leaves, a process not involving muscle action, but rather a quick response mechanism.

Different areas of association in the fore-brain interpret sensory information by combining inputs from various receptors and stored information, ultimately leading to the formation of decisions and responses.

The fore-brain serves as the main thinking part of the brain, specializing in receiving and interpreting sensory impulses from various receptors for hearing, smell, sight, and other senses.

Muscle cells change their shape and shorten at the cellular level by utilizing special proteins that respond to nervous electrical impulses, leading to new arrangements of proteins that result in the muscle cells adopting a shorter form.