Question

name the structures which help in the excretion in tapeworm and earthworm

Answer 1

IN EARTHWORMS : Nephridia.

these structures help in excreting CO2 and nitrogenous wastes.

they're two types of nephridia

1. septal nephridia (present in the septa) and

2. integumentary nephridia (present in skin).

IN TAPEWORMS : Flame cells.

they are flagellated (when the flagella moves it appears like the swaying motion of a flame, hence the name.) and these help propel waste out of the body.

they also function in osmoregulation for the tapeworm.

Answer 2

Answer:

hey mate answer

1. It is shaped thin like a strip of tape, which is the source of the common name tapeworm. Like some other flatworms, cestodes use flame cells (protonephridia) for excretion, which are located in proglottids. Mature or gravid proglottids are released from the mature tapeworm and leave the host in its feces.

Explanation:

2 EXCRETION IN EARTHWORM. ... The carbon dioxide is excreted out from the body through its moist skin by the process of diffusion. The nitrogenous wastes are excreted out of the body by special excretory organs called nephridia (singular nephridium).

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