The head shows great mobility in all direction due to

The head of cockroach is formed by the fusion of six segments and shows and shows great mobility in all directions due to a flexible neck. The neck is a short extension.

The head of cockroach is formed by the fusion of six segments and shows great mobility in all directions due to a flexible neck. The neck is a short extension of

Choose the incorrect statement about cockroaches from the following. (a) Antennae have sensory receptors that help in monitoring the environment. (b) The head is formed by the fusion of six segments and show great mobility in all directions and flexible neck . (c) The first pair of wings arise from the mesothorax and the second pair from the metathorax. (d) In males , the genital pouch or chamber lies at the hind end of abdomen bounded ventrally by 9th and 10th terga and dorsally by the 9th sternum.

If the upward direction is taken as positive then, which of the following correctly shows the magnitude of acceleration due to gravity with its direction?

Three players A, B, C toss a coin in turn till head shows. Let p be the probability that the coin shows a head. Let alpha,beta,gamma be respectively the probabilities that A, B and C get first head then