Which of the following statements is incorrect ?
I. Each Malpighian tubule in cockroach is lined by glandular and ciliated cells.
II. Most of the species of cockroach are of no economical importance.
III. Fat bodies in cockroach play an important role in reproduction.
IV. The cockroach is ammonotelic in the rainy season.

In Cockroach wall of each malpighian tubule is lined by …........and …........cells.

In Cockroach wall of each malpighian tubule is lined by …........and …........cells.

Read the following and select the only true statement about cockroach. A . Each Malpighian tubule is lined by glandular and ciliated cells. B. A characteristic mushroom gland is present in the female cockroach in the 6th - 7th abdominal statements . C. Both compound eye consists of about 2000 hexagonal ommatidia. D. The development of P. americana is paurometabolous through the nymphal stage.

Read the given paragraph It is lined by glandular and ciliated cells. It absorbs nitrogenous waste products from haemocoel and covert them into uric acid which is excreted out through the hindout Which of the following structures of cockroach is referred here ?

Read the given paragraph It is lined by glandular and ciliated cells. It absorbs nitrogenous waste products from haemocoel and covert them into uric acid which is excreted out through the hindout Which of the following structures of cockroach is referred here ?

Read the given paragraph It is lined by glandular and ciliated cells. It absorbs nitrogenous waste products from haemocoel and covert them into uric acid which is excreted out through the hindout Which of the following structures of cockroach is referred here ?

Metamerism I. increases the efficiency of body movement . II.is the characteristic feature of Annelida . III.plays an important role in respiration . IV.helps for capturing prey .

Which of the following statement is/are incorrect about lymph ? (i) Lymph is colourful as it has haemoglobin but no RBC (ii) It contains specialised lymphocytes which are responsible for immunity of the body (iii) Lymph is an important carrier for nutrients and harmones (iv) Fats are absorbed through lymph in the lacteals present in the intestinal villi.

Which of the following statement is/are incorrect about lymph ? (i) Lymph is colourful as it has haemoglobin but no RBC (ii) It contains specialised lymphocytes which are responsible for immunity of the body (iii) Lymph is an important carrier for nutrients and harmones (iv) Fats are absorbed through lymph in the lacteals present in the intestinal villi.

Assertion : Excretion in cockroach occurs by Malpighian tubules Reason : Each Malpighian tubule is lined by non-ciliated columnar cells.