BIOLOGY >PRINT UPGRADE<
BIOLOGY >PRINT UPGRADE<
11th Edition
ISBN: 9780357091586
Author: Solomon
Publisher: CENGAGE L
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Chapter 40, Problem 12TYU
Summary Introduction

To determine: Some benefits and some disadvantages of different skeletal systems that have been evolved in arthropods and vertebrates.

Introduction: Skeletal system forms the framework of the body to protect the internal organ and also helps in locomotion. Different types of skeletal systems have been evolved in arthropods and vertebrates.

Summary Introduction

To explain: The way in which insect skeleton is an adaptation to the insect lifestyle.

Introduction: Insects have the exoskeleton which is made up of nonliving substances such as chitin and forms a layer around the body. The exoskeleton is made up of many plates, which are flexible, long and thick.

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You are studying the effect of directional selection on body height in three populations (graphs a, b, and c below). (a) What is the selection differential? Show your calculation. (2 pts) (b) Which population has the highest narrow sense heritability for height? Explain your answer. (2 pts) (c) If you examined the offspring in the next generation in each population, which population would have the highest mean height? Why? (2 pts) (a) Midoffspring height (average height of offspring) Short Short Short Short (c) Short (b) Short Tall Short Tall Short Short Tall Midparent height (average height of Mean of population = 65 inches Mean of breading parents = 70 inches Mean of population = 65 inches Mean of breading parents = 70 inches Mean of population = 65 inches Mean of breading parents = 70 inches
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