Chapter 21, Problem 11A

Summary Introduction

To write:

About the vocabulary term thallose.

Introduction:

Nonvascular plants make up one of the four major groups of plants that evolved along with green algae from a common ancestor. In general, nonvascular plants usually are small, which enables materials to move within them easily. These plants often are found growing in damp, shady areas where an environment provides the water needed by nonvascular plants for nutrient transport and reproduction.

Explanation of Solution

Hepaticophytes are referred to as liverworts because of their appearance and use as a medicine to treat liver ailments during medieval times. Liverworts tend to grow close to the ground and in areas where moisture is plentiful, such as damp soil, near water, or on damp decaying logs. Water, nutrients, and other substances are transported throughout liverworts by diffusion and osmosis. Liverworts are classified as either thallose or leafy. A thallose liverwort has a body that resembles a fleshy, lobed structure. Leafy liverworts have stems with flat, thin leaf-structures arranged in three rows.

Conclusion

Therefore, it can be concluded that thallose is a classification of liverworts that has a body that resembles fleshy lobed structure.