Question

Which of the following are examples of arthropods?
A. Silverfish, star fish, prawn
B. Clam worm, apple snail, honey bee
C. Seastar, tongue worm, scorpion
D. Cockroach, scorpion, prawn

Answer 1

Hint: A total of three segments are present in the body of arthropods including jointed appendages and the exoskeleton. The arthropods which live on land are known as terrestrial arthropods. These terrestrial arthropods have lungs or trachea to breathe air for their survival on land.

Complete answer:
An arthropod is the most an invertebrate animal which is having an exoskeleton with a segmented body, and a paired jointed appendages which is unique. All segments of the arthropod body, and the pair of appendages show how the arthropods are characterized especially by their jointed limbs and the cuticle (which is made of chitin) is often mineralized with calcium carbonate.
The growth is inhibited by the rigid cuticle, so arthropods replace it periodically by molting, which for the most part shows that the arthropod body consists of segments (each with a pair of appendages) showing how arthropods are characterized by their jointed limbs and cuticle made of chitin, often mineralized with calcium carbonate, which is quite significant. Some species generally have wings, demonstrating that arthropods for the most part are characterized by their jointed limbs and cuticle made of chitin, often mineralized with calcium carbonate in a big way.

Hence, the correct answer is option D. Cockroach, scorpion, prawn are a few examples of the arthropods.

Note:
As the arthropods have segmented bodies, exoskeleton, and jointed limbs, thus chitin is present in exoskeleton or cuticles and also a polymer of glucosamine is present. The cuticle is biomineralized with calcium carbonate and this is observed in many beetle mites, crustaceans, and millipedes.