Chapter 34, Problem 14SQ

Summary Introduction

To examine: Whether the statement “All hormones secreted by arthropods such as crabs and insects are also secreted by vertebrates.” is true or false.

Introduction: The major differences between the vertebrate and invertebrate are that invertebrate lacks well developed backbone or spiral columns and brain. They have structural difference because of the physiological and biochemical distinction between them. Invertebrates produce some unique hormones, especially in arthropods, which play an important role in metamorphosis.