Home
Class 12
BIOLOGY
Consider the following statements (A - D...

Consider the following statements (A - D) related to Periplaneta americana and select the correct option stating which ones are true (T) and which ones are false (F).
Statements :
A. In male cockroach, 10th segment bears a pair of short, thread like anal styles which are absent in female.
B. The first pair of wings arise from mesothorax and are used in flight.
C. Opening of 10 pairs abdominal spiracles is regulated by sphincters.
D. In male cockroach, a mushroom gland is present in the 6th - 7th abdominal segments.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Similar Questions

Explore conceptually related problems

Consider the folloiwng four statements and select the correct option stating which one are true(T) and which ones are false(F)

Cockroach(Periplaneta Americana)

Wings of Periplaneta americana mostly help it in

Assertion : Cockroach shows sexual dimorphism Reason : The female cockroach bears a pair of short thread like anal styles.

In male and female cockroach 10^(th) segment ears of a pair of jointed filamentous structure called-

Consider the following statements related to Rana tigrina and select the correct option stating which are True (T) and which are False (F). I. Hindlimbs are larger and muscular than forelimbs. II. The alimentary canal of frog is short. III. They respire on the land through skin only. IV. They contain two - chambered heart.

Consider the following four statemets (A - D) related to organic farming and select the correct option stating which ones are true (T) and which ones are false (F). The statements: (A) Produces food crops rich in lipids, vitamins and iron (B) Users biofertilisers which increases soil fertility (C ) There is more use of chemical fertilisers and pesticides (D) Raising unpolluted crops throuth the use of bacteria, fungi and cyanobacteria

Choose the correct statement for Periplaneta americana