The given figure shows the nephridial system of earthworm and answer the question.

Select the option which shows the correct identification and the function of the structure marked as X.

A. Lateral heart. It is a blood pumping organ.

B. Calciferous glands. They neutralize the humic acid present in humus.

C. Nephridia. It regulates the volume and composition of the body fluids.

D. Blood glands. They produce blood cells and haemoglobin which is dissolved in blood plasma.

Please do not use chat terms. Example: avoid using "grt" instead of "great".

You can do it
  1. The supportive skeletal structures in the human external ears and in the nose tip are examples of
  2. What are the three basic components of connective tissues?
  3. The following figures A, B and C are types of muscle tissue. Identify A, B and C.
  4. The chondrocytes of connective tissue are
  5. Which of the following types of connective tissue is mismatched with its matrix ?
  6. Tendons and ligaments are the examples of
  7. Three essential components of most neurons are
  8. The blood of cockroach contains no respiratory pigment. It means that
  9. In cockroach, the testes are present in
  10. Read the following statements and answer the question.They have a hard and non-pliable ground substance…
  11. Match column-I with column-II and choose the correct option.Column-IColumn-IIA. PeriplanetaI. Hepatic…
  12. Refer the given figure and identify the correct characteristic feature.It is a type of loose connective…
  13. Cockroaches are brown or black bodied animals that are included in class _______ of phylum _______.
  14. Male cockroach can be identified from the female by the presence of
  15. Which of the following statement is/are correct regarding digestive system of cockroach ?Mouth opens…
  16. Match the description given in column I with their examples given in column II and choose the correct…
  17. The figure given below shows the head region of cockroach. Identify A to F.
  18. Which of the following statement(s) is/are correct about nervous system of cockroach ?It consists of…
  19. The shape of a persons ear is due to mainly to
  20. Which of the following type of tissue is being described by the given statements ?They are named because…
  21. Nervous tissue cells that play several supporting roles but do not transmit impulses are called
  22. The intercellular material of the given figure is solid and resists compression. Identify the figure…
  23. What will happen if ligaments are cut or broken?
  24. When cardiac muscle cells are damaged by a heart attack, they are usually replaced by
  25. The given figure shows the digestive system of cockroach with few structures marked as A, B, C and D.…
  26. Statement 1: Typhlosole increases the effective area of absorption in the intestine.Statement 2: Typhlosole,…
  27. The given figure shows the nephridial system of earthworm and answer the question.Select the option…
  28. If the head of cockroach is cut off, it will still alive for as long as one week. It is because of
  29. The only type of cell seen in a tendon is
  30. Which of the following animals maintain ecological balance?