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Answer the following:(i) What is the function of nephridia?(ii) How many types of nephridia are found in earthworm based on their location?
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(i) Nephridia are segmentally arranged excretory organs present in earthworms.
(ii) On the basis of their location, three types of nephridia are found in earthworms. They are :
(a) Septal nephridia : These are present on both sides of the intersegmental septa behind the 15 segment and they open into the intestine.
(b) Integumentary nephridia : These lie attached to the body wall from the third segment to the last segment, which opens on the body surface.
(c) Pharyngeal nephridia : These are present as three paired tufts in fourth, fifth, and sixth segments.
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Question Text | Answer the following: (i) What is the function of nephridia? (ii) How many types of nephridia are found in earthworm based on their location? |
Updated On | Oct 30, 2022 |
Topic | Structural Organization in Animals |
Subject | Biology |
Class | Class 11 |
Answer Type | Text solution:1 Video solution: 2 |
Upvotes | 199 |
Avg. Video Duration | 5 min |