Chapter 28, Problem 5STP

Summary Introduction

Introduction:

Arthropods have complex organ systems that helped them to live in a variety of habitats. Adaptations of many organ systems, such as the respiratory system and the nervous system, have led to the growth of these creatures.

Answer to Problem 5STP

Correct answer:

The correct answer is option (C) to distinguish light from dark.

Explanation of Solution

Explanation/justification for the correct answer:

Option (C) to distinguish light from dark. Many arthropods have three to eight simple eyes. A simple eye has one lens and functions by distinguishing light from dark. In locusts and some other flying insects, simple eyes act as horizon detectors that help stabilize flight. So, the correct answer is option (C).

Explanation for incorrect answer:

Option (A) to analyze landscapes during flight. Most arthropods have one pair of large compound eyes. The compound eyes of arthropods help them to analyze a fast-changing landscape during flight. So, this is an incorrect option.

Option (B) to detect colors. The compound eyes in arthropods can detect colors, movements of prey, and predators or mates. So, this is an incorrect answer.

Option (D) to see movement. In arthropods, the movement is also seen by the compound eyes. Simple eyes can distinguish light from dark. So, this is an incorrect answer.