How the anatomy of Annelids can be called as “a tube within a tube”. Concept introduction : Annelids are coelomate animals with true segmentation. They are triploblastic and bilaterally symmetrical. They are found in diverse habitats such as damp soil, mud, oceans and rock crevices. The word annelida has been derived from Latin word ‘annuli’ which means little rings. The body of annelids is made up of a number of rings like segments called metameres. Each segment is separated from other by septa with repetition of organs in each septum. The phylum Annelida includes a number of animals such as earthworm, leeches and others.

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You have been hired as a public relations specialist to give invertebrates a good name. After all, they are much more than just creepy crawly bugs! Your first task though is to convince yourself that is true. The best way to do that is to start close to home. Find something in your house that is a product obtained directly from an invertebrate or only due to an invertebrate’s actions. Describe the product, its function and utility, as well as any human manufactured alternatives. Be sure to highlight the advantages of obtaining this directly from nature. Keep in mind, a product can be something you use, wear, eat, or enjoy for its visual appeal.

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Question

Chapter 33.3, Problem 2CC

Summary Introduction

To explain: How the anatomy of Annelids can be called as “a tube within a tube”.

Concept introduction: Annelids are coelomate animals with true segmentation. They are triploblastic and bilaterally symmetrical. They are found in diverse habitats such as damp soil, mud, oceans and rock crevices.

The word annelida has been derived from Latin word ‘annuli’ which means little rings. The body of annelids is made up of a number of rings like segments called metameres. Each segment is separated from other by septa with repetition of organs in each septum. The phylum Annelida includes a number of animals such as earthworm, leeches and others.

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