Question

Which of the following is present in molluscs but
not in echinodermates ?
(a) Flame cells (b) Malpighian tubules
(c) Kidney (d) None of these

Answer 1

hey mate ur answer is

(c)

hope it helps u......✌✌

Answer 2

Option C

Kidney  is present in molluscs but  not in echinodermates

Explanation:

• Mollusks are chiefly aquatic.
• Mollusks also have a well-developed excretory system, utilizing tubular nephridia classified as kidneys, that accumulate liquid trash from the coelom and deposit them in the mantle cavity, where they are elevated out of the shell.
• Echinoderms are a dominant accumulation of unique marine animals.
• Echinoderms have an uncomplicated excretory system with no kidneys and practice diffusion to clear their bodies of nitrogenous waste which is essentially ammonia gas.
• Echinoderms have branched symmetry.

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Echinoderms have a system that they use for moving around. Name the system. What is their skeleton made up of?