BIOLOGY  -TEXT
BIOLOGY -TEXT
14th Edition
ISBN: 9781260710878
Author: Mader
Publisher: RENT MCG
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Chapter 29, Problem 2TC
Summary Introduction

To describe:

An evolutionary explanation for the elimination of teeth in a bird’s beak.

Introduction:

The Archaeopteryx lithographica is the “transitional fossil”, which connects the dinosaurs with the modern birds. This organism has characteristics of both reptiles and birds. The tail of this bird possesses many vertebrae, have “toothed beak”, and have clawed wings. These are reptilian characters. Also, the organism has wings with contour feathers “avian character”.

Pictorial representation: The phylogenetic tree of birds.

BIOLOGY  -TEXT, Chapter 29, Problem 2TC

Fig. 1: Phylogenetic tree of birds.

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