Question

Which of the following organisms have flame cells for excretion? OPTIONS
A) Planaria and Pila
B) Chiton and Euplectella
C) Fasciola and Taenia
D) Rhabdisis and periplaneta​

Answer 1

Answer:

pair of flame cells is present in Fasciola which opens out laterally towards the posterior end that function like a kidney helping in the removal of waste materials. Nephridia in Pheretima posthuma (earthworm) hang freely in the coelom and are attached only by their terminal ducts. They open into two septal excretory canals lying on the posterior surface of the septum that lies one on each side of the intestine and helps in expelling the metabolic wastes.

Answer 2

The flame cells for excretion is  (C) Fasciola and Taenia.

Explanation:

• A pair of flame cells is present in Fasciola which opens out laterally towards the posterior end that function like a kidney helping in the removal of waste materials.
• Nephridia in Pheretima posthuma (earthworm) hang freely in the coelom and are attached only by their terminal ducts.
• They open into two septal excretory canals lying on the posterior surface of the septum that lies one on each side of the intestine and helps in expelling the metabolic wastes.
• A flame cell is a specialized excretory cell found in the simplest freshwater invertebrates including flatworms, rotifers and nemerteans these are the simplest animals to have a dedicated excretory system.
• Flame cells function like a kidney, removing waste materials.
• Bundles of flame cells are called protonephridia.
• Flame cells are found in flatworms including parasitic tapeworms and free living planaria.