What makes an animal intelligent? – Its brain.

How does the brain work? –  It forms a complex network of neurones that fire as with a computer.

How do the nerve cells fire? – They have electrochemical charges on their membranes. They change electric potential by moving charged ions.

Do plants think? – We don’t know. We know they are conscious of their environment and respond to it.

How would a plant think? It doesn’t have a brain or nervous system does it? – All plant cells have the same electro-potential as brain cells. Maybe the whole plant operates as a brain?