The functions of bones of the vertebrate endoskeleton. Introduction: There are three types of skeletal system: exoskeleton, which forms the outer shell in tortoise, Endoskeleton, which lies beneath the exoskeleton in echinoderms, and the hydrostatic skeleton, which is found in the coelom of echinoderms.

Question

6. The mammalian phylogenies (labeled a and b) were produced by two different research groups. a. In which tree do phylogenetic relationships most closely align with biogeography and why? (consult the Teeling and Hedges paper) b. What are the most closely related species to Chiroptera in each tree? Might the use of convergent traits for building phylogenies explain this difference? If so, which tree is most likely to have relied on convergent traits and why? c. What are some possible reasons that the two research groups came up with different phylogenies (in general terms)? describe at least three possible reasons.

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Question

Chapter 43.2, Problem 2SB

Summary Introduction

To review:

The functions of bones of the vertebrate endoskeleton.

Introduction:

There are three types of skeletal system: exoskeleton, which forms the outer shell in tortoise, Endoskeleton, which lies beneath the exoskeleton in echinoderms, and the hydrostatic skeleton, which is found in the coelom of echinoderms.

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