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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

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Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 22, Problem 12SQ
Textbook Problem
3 views

Which angiosperm lineage includes the most species?

  1. a. magnoliids
  2. b. eudicots
  3. c. monocots
  4. d. water lilies

Summary Introduction

Introduction: Angiosperms are vascular seed plants and are known as flowering plants. They are recent group of plants and diverse in growth forms, morphology, and habitats. They have approximately 2,60,000 living species. The earliest angiosperms are part of the family Amborellaceae and other early lineages included Nympheales (water lilies) and Illiciales (star anise). Genetic divergences gave rise to magnoliids group, monocots, and eudicots that became dominant.

Explanation of Solution

Reason for the correct statement:

Magnoliids are 9200 in numbers and include magnolias, black pepper, and avocados. Monocots are 80,000 and include orchids, lilies, palms, grasses, and irises. The eudicots include all other flowering plants comprising the bulk of all flowering plant species, such as roses, tomatoes, cabbages, shrubs, cacti, and trees. They account for 170,000 species.

Hence, option b. is correct.

Reasons for the incorrect statement:

Option a. is given as “magnoliids”...

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