Question

Lepisma is
A. Stick insect
B. Leaf insect
C. Praying Mantis
D. Silverfish

Answer 1

Hint: Lepisma belongs to the Animal kingdom . Phylum of lepisma is Arthropoda . Arthropoda is the largest Phylum of animals which includes insects . Over two-thirds of all named species of earth are arthropods . The most important feature of the Phylum Arthropoda is jointed appendages.

Complete answer:
Arthropods have organ system level of organisation . They are bilaterally symmetrical , triploblastic animals . Body is segmented and coelomate is present in the Animals belonging to Phylum Arthropoda.
The body consists of the head , thorax and abdomen . The body is also covered by a chitinous exoskeleton.
Respiratory organs are also very complex in these organisms; they can be gills , book lungs or tracheal systems . Circulatory system is of open type . That means blood does not flow in any tubes. Sensory organs like antenna , compound and simple eyes are present . Balancing organs known as the statocysts are also present in these animals .
Excretion takes place through Malpighian tubules. There are mostly dioecious animals . Fertilization is usually internal. They are mostly oviparous and development may be direct or indirect.
 Lepisma is a primitive group of insects. It is one of the oldest animals of Phylum Arthropoda. The most familiar of them is silverfish.

Hence the correct answer is OPTION(D)

Note: Phylum Arthropoda consists of a wide variety of organisms , some of them are beneficial for humans such as honey bee, silkworm etc. Some are carriers of diseases such as mosquitoes. Some of them are very dangerous pests such as locusts. King crab is a living fossil.