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Nephridia as excretory organ are found i...

Nephridia as excretory organ are found in ________

A

platyhelminthes

B

annelida

C

arthropoda

D

porifera

Text Solution

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The correct Answer is:
To answer the question "Nephridia as excretory organ are found in ________", we can follow these steps: ### Step-by-Step Solution: 1. **Understand the term 'Nephridia':** - Nephridia are tubular structures that function as excretory organs in certain invertebrates. They help in the removal of waste products from the body. 2. **Identify the options provided:** - The question typically provides multiple-choice options. In this case, we will consider the common groups of animals that might be listed, such as Platyhelminthes, Annelida, Arthropoda, and Porifera. 3. **Analyze each option:** - **Platyhelminthes:** - The excretory system in Platyhelminthes consists of flame cells (or protonephridia), not nephridia. Therefore, this option is incorrect. - **Annelida:** - Annelids, such as earthworms, possess nephridia as their excretory organs. They are responsible for the excretion of waste materials. This option is correct. - **Arthropoda:** - In Arthropods, the excretory organs include Malpighian tubules, antennal glands, or maxillary glands, but not nephridia. Thus, this option is incorrect. - **Porifera:** - Porifera (sponges) do not have a distinct excretory system; they rely on the flow of water through their bodies to expel waste. Therefore, this option is also incorrect. 4. **Conclude the answer:** - Based on the analysis, the correct answer is **Annelida**, as they are the group of animals that possess nephridia as their excretory organ. ### Final Answer: Nephridia as excretory organ are found in **Annelida**. ---
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