Question

What is the Aristotle's lantern? A structure within the water vascular system A feeding structure O A respiratory structure A sensory structure An excretory structure

Answer 1

Aristotle's lantern is a feeding structure.

Explanation ---

Aristotle's lantern is a Dental or masticatory complex present in sea urchin. Here, the teeth are located in 5 different sides and are protruded ie, outward which help in searching and scrapping out their food and small plants like algae. This Aristotle's lantern can be poisonous. Since, it helps search and capture their food ,it is feeding apparatus.

Sea urchins live in aquatic environment and have a water vascular system which acts as a respiratory organ. Water vacular system is a network of canals. Through these canals, gases exchange through diffusion helping in respiration of sea urchins

Sea urchins posses pores all over their body through which they release out their waste product. This act as their excretory system.

They have numerous sensory cells all over their body.

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All of the choices are non avian reptile Characteristics.

Explanations -

Reptiles are organism which live on land and posses hard scaly skin. Some of reptile lay egg which have hard protective covering shell around it while mostly they are viviparous ie, give birth to young ones. They have advanced reproductive organs system which facilitates internal fertilization in them. Examples -- snake

Amphibian are land and water living which lay their eggs in water to prevent them from dessication. They are all egg laying. They show external fertilization. FeMale releases eggs in water and other males fertilise it. Their skin is soft, moist and sticky to touch. Example -- frogs