Answered: The presence of certain…

Applications and Investigations in Earth Science (9th Edition)

9th Edition

ISBN:9780134746241

Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa

Chapter1: The Study Of Minerals

Section: Chapter Questions

Problem 1LR

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The presence of certain structures/characteristics among certain Arthropods undoubtedly
contributes to their success as terrestrial animals.” List and discuss in detail, three (3) features in
terrestrial arthropods that have enhanced their success in terrestrial environment.

Expert Solution

Step 1

The arthropods are eukaryotic animals belonging to the kingdom Animalia and phylum Arthropoda. Arthropods are invertebrates which include species like insects and crustaceans. The animals like the cockroach, spider, scorpion, crabs, lobsters, and shrimps are arthropods.

Step 2

The features of terrestrial arthropods that made them successful in the terrestrial environment are as follows:

The exoskeleton: The exoskeleton is an outer protective covering which is hard due to the structural carbohydrate known as chitin. The exoskeleton protects arthropods from predators and enhances their survival on land.
Symmetrical and segmented body: The symmetry of arthropods is bilateral, which means their body is divided into equal halves that are the mirror images. The body of arthropods is divided into segments like head, thorax, and abdomen, which makes them different from other animals.
Joint appendages: The appendages of arthropods are jointed and occur in pairs which during development makes the exoskeleton stronger and promotes self-protection. The joint appendages also provide locomotion to the arthropods on land.