Question

What is common among Silverfish, Scorpion, Crab and Honey bee?
A. Compound eyes
B. Poison glands
C. Jointed legs
D. Metamorphosis

Answer 1

Hint: Silverfish, Scorpion, Crab and Honey bee are organisms that belong to the same phylum i.e. Arthropoda. This phylum includes insects, arachnids, crustaceans, etc.

Complete solution:
Arthropoda literally means jointed appendages. All the animals of this phylum have jointed legs. An arthropod is an invertebrate animal with an exoskeleton, a segmented body and jointed appendages that are paired. A joint appendage can be defined as the growth of the organism's body with joints in it. Jointed appendages are a typical characteristic of arthropods. Legs, wings and mouthparts can include joint appendages in arthropods. Stability and shock absorbers are provided by jointed legs. They are highly versatile and have a large range of motion. They also evolved with an exoskeleton that prevents the skin of the land animals of this phylum from drying and provides support in case of buoyant water. The phylum Arthropoda includes 80% of the animal species. Over the years, these animals have developed some adaptive features to survive the evolving climatic environments and form the animal kingdom's largest phylum.
Hence, the correct answer is option C.

Additional Information: Common characteristics of Arthropods are:
1. They have a circulatory system that's open.
2. Chitin is made of an exoskeleton.
3. There is a division of the body into the head, thorax and abdomen.
4. Their bodies have joint appendages that assist with locomotion.
5. They respire via the general surface of the body or trachea
6. Sensory organs such as hairs, antennae, simple and compound eyes, auditory organs,

Note: Silverfish, scorpion, carb and honey bee belong to different orders, i.e. Zygentoma, Decapoda and Hymenoptera respectively. The coconut crab, i.e. Birgus latro is the largest arthropod on land. They are crustaceans.