Chapter 26.1, Problem 3MI

Summary Introduction

To write:

The correct term in the left column for each definition.

Introduction:

Arthropoda is the biggest phylum of every single living creature and having individuals with trademark exoskeleton and segmented bodies.

Explanation of Solution

Cephalothorax body structure consisting of fused thorax and head regions.

Spiracle opening from the tracheae or book lungs to the outside of an arthropod’s body.

Tracheal tube that branches into smaller and smaller tubules to carry oxygen throughout the body.

Abdomen body region of fused segments at the posterior end of an arthropod that contains digestive structures and reproductive organs.

Malpighian tubule in most arthropods, structure that removes cellular wastes from the blood and empties into the gut.

Book lung saclike pocket with highly folded walls for respiration.

Molting in arthropods process of shedding an exoskeleton.

Thorax middle body region, consisting of three fused main segments to which, in many arthropods, legs and wings are attached.

Appendage structure that grows and extends from an animal’s body.

Mandible mouthpart in arthropods that can be adapted for biting and chewing.

Pheromone chemical secreted by many animal species that influences the behavior of other animals of the same species.