EBK BIOLOGY
EBK BIOLOGY
4th Edition
ISBN: 8220102797376
Author: BROOKER
Publisher: YUZU
bartleby

Concept explainers

bartleby

Videos

Question
Book Icon
Chapter 29, Problem 1TY
Summary Introduction

Introduction: The modern plants are the descendants of the small and simple plants which could survive on land. The modern land plants do not require water to complete their life cycle, but their ancestors could not complete their life cycle without water.

Expert Solution & Answer
Check Mark

Answer to Problem 1TY

Correct answer: The liverworts are probably the simplest and most ancient phylum of the modern land plants. Hence, the correct answer is option c.

Explanation of Solution

Reason for correct answer:

Liverworts belong to the phylum bryophyte and these organisms have a simple morphology. Their body is composed of thallus, stalk, and rootlets. They require water to complete their life cycle and have gametophyte as the dominant stage of the life cycle. Hence, the liverworts are the simplest and most ancient phylum of modern plants.

Option c. is given as “the liverworts”.

The modern plants have simplest and most ancient phylum probably as the liverworts. Hence, the correct answer is option c.

Reasons for the incorrect answer:

Option a. is given as, “the pteridophytes”.

The pteridophytes are the vascular plants and have complex morphology compared to the liverworts. Hence, option a. is incorrect.

Option b. is given as, “the cycads”.

The cycads belong to the gymnosperm group. They have a dominant sporophytic stage in their life cycle and have complex stele just like modern land plants. Hence, option b. is incorrect.

Option d. is given as, “the angiosperms”.

The modern land plants are themselves classified into angiosperms. Therefore angiosperms are not the simplest and most ancient phylum of modern-day plants. Hence, option d. is incorrect.

Option e. is given as, “none of the above”.

The liverworts are probably the simplest and most ancient phylum of the modern day plants. Hence, option e. is incorrect.

Hence, the options a., b., d., and e. are incorrect.

Conclusion

The simplest and most ancient phylum of modern land plants is probably the liverworts.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!
Knowledge Booster
Background pattern image
Biology
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Text book image
Human Anatomy & Physiology (11th Edition)
Biology
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:PEARSON
Text book image
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Text book image
Anatomy & Physiology
Biology
ISBN:9781259398629
Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa Stouter
Publisher:Mcgraw Hill Education,
Text book image
Molecular Biology of the Cell (Sixth Edition)
Biology
ISBN:9780815344322
Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter Walter
Publisher:W. W. Norton & Company
Text book image
Laboratory Manual For Human Anatomy & Physiology
Biology
ISBN:9781260159363
Author:Martin, Terry R., Prentice-craver, Cynthia
Publisher:McGraw-Hill Publishing Co.
Text book image
Inquiry Into Life (16th Edition)
Biology
ISBN:9781260231700
Author:Sylvia S. Mader, Michael Windelspecht
Publisher:McGraw Hill Education
General Embryology Review in 20 minutes; Author: Medical Animations;https://www.youtube.com/watch?v=4YKvVeVMmEE;License: Standard youtube license