Question

Number of segments with enteronephric nephridia in a 100 segmented pheretima is?

Answer 1

Explanation:

each segment of the body from 7th to the last segment, numerous nephridia are found attached inside the lining of the body wall. These are called integumentary nephridia which are about 200-250 in each segment except the segment of the clitellar region where they number 2,000-2,500 in each segment.

Answer 2

Number of segments with enteronephric nephridia in a 100 segmented pheretima is 40

Explanation:

• nephridia is an organ which is used as the excretory structure in case of the Earth 1. Nefridia are usually of to type.

• The exonephric nephridia is used in the  excretion of the substances out of the body of the earth one through various secretion.

• Whereas the enteronephric nephridia in case of an earthworm helps in the  excretion of the harmful nitrogenous material into the the intestine from where they are excreted.

To know more about enteronephric nephridia,

The enteronephric nephridia of earthworm are mainly concerned with

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