Chapter 28, Problem 3TYK

Summary Introduction

Introduction:

Plants have evolved to adapt to terrestrial life on Earth, over the course of evolution. They used to stay underwater on early earth and that did not require much modification because of a continuous source of water supply. However, as the plants adapted to terrestrial life, the leaves and stems of plants got modified in many ways and they also developed an intricate root system to ensure a continuous water supply. The leaves of plants are of two types: microphylls and megaphylls.