Chapter 21, Problem 37A

Summary Introduction

To describe:

The difficulties faced by a plant when they adapted on land.

Introduction:

The plants are the photosynthetic organism that eventually moved on land and adapted to the conditions on land. The conditions on the lands were dry and not favorable for aquatic plants.

Explanation of Solution

When the plants moved on the lands, the first problem a plant had to face was lack of water. The lack of water cause a condition of water stress and nutrients were also not easily absorbable. The climatic conditions were hot and this made plants lose more water. Another problem was the mode of reproduction. The transfer of spores/reproductive structures was not easy.