Question

Arthropods are the most successful animals because of:

• A. coelom
• B. brain
• C. joint appendages
• D. chitinous exoskeleton

Answer 1

The correct option is D

chitinous exoskeleton

The correct option is: D

Explanation of the correct option:

The phylum Arthropoda consists of more than two-thirds of the animal species on earth. The reasons for the success of arthropods are as follows:

1. Jointed legs that allow more mobility on land.
2. Hard exoskeleton made of chitin that protects the body.
3. The hard exoskeleton also reduces water loss from the body of arthropods making them more adapted to terrestrial conditions.

Final answer: Arthropods are the most successful animals because of chitinous exoskeleton.