It may take the form of a report, poster, video, slides, or another format. The important thing is that your present all the information in a neat, organized way. Follow the rubrics for further guidance, since they tell you what you need, and how you will be graded. Principle internal factors that regulate growth and development in plants are the hormones. Hormones are organic substances produced in one tissue and transported to another tissue, where their presence results in a physiological response.
Hormones are active in very small quantities.
Both of these responses are thought to be meditated by plant hormones called auxins, which affect cell elongation. These experiments investigate these responses and their causes. Sunlight, water and nutrients need to be available in proper amounts at the right time. There are ten essential chemical elements needed for plant growth. These include carbon, hydrogen, oxygen, potassium, calcium, magnesium, nitrogen, phosphorus, sulfur, and iron.