Campbell Biology (10th Edition)
Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 31, Problem 6TYU
Summary Introduction

To write: To test the given hypothesis.

Concept introduction: Lichen refers to symbiotic association formed between a fungus and an alga or a cyanobacterium. Its growth is seen in various forms on the surfaces of rotting logs, trees, rocks, and roofs.

Given: Two hypotheses are proposed for lichen growth forms:

  1. a) Hypothesis 1: “Crustose, foliose, and fruticose lichens, of which each represent a monophyletic group”
  2. b) Hypothesis 2:“Each lichen growth form represents convergent evolution by taxonomically diverse fungi”

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