Read the following statements regarding the excretory system of a cockroach: (A) Excretion is primarily performed by Malpighian tubules. (B) Malpighian tubules absorb nitrogenous waste products and convert them into urea. (C) The fat body, nephrocytes and urecose glands also help in excretion. (D) The nitrogenous waste is excreted out of the body through the midgut. How many of the above statements are correct?

Step-by-step solution

Statement (A) is correct: Malpighian tubules are the primary excretory organs in a cockroach. Statement (B) is incorrect: Malpighian tubules absorb nitrogenous waste products and convert them into uric acid, not urea. Cockroaches are uricotelic. Statement (C) is correct: In addition to Malpighian tubules, the fat body, nephrocytes, and urecose glands also assist in excretion. Statement (D) is incorrect: Uric acid is excreted out through the hindgut, not the midgut. Thus, exactly two statements ((A) and (C)) are cor