In this chapter you will explore the growth patterns of annuals, biennials, and perennials. You will also examine the role of hormones in plant growth and development.

In this chapter, you will: compare annual, biennial, and perennial plants compare the growth of monocot and dicot stems explain how roots increase in length describe the effects and importance of hormones on plant growth identify several plant tropisms compare long-day, short-day, and day-neutral plants