Question

What name is given to chemical substances which bring about control and coordination in plants?

Answer 1

Answer:

Phytohormones is the chemical substance which bring about control and coordination in plants

Explanation:

Plant hormones (also known as phytohormones) r signal molecules, produced within plants, that occur in extremely low concentrations. Plant hormones control all aspects of plant growth nd development, from embryogenesis, the regulation of organ size, pathogen defense, stress tolerance nd through to reproductive development. Unlike in animals (in which hormone production is restricted to specialized glands) each plant cell is capable of producing hormones. Went nd Thimann coined the term "phytohormone" nd used it in the title of their 1937 book.