Structural Orga...

In cockroach, which of the following is the principal motor centre?

In earthworms setae are present in all segments except 

Which one of these processes are found in animal only?

The glands present in the skin of frog are

Venous system of frog differs from that of rabbit in presence
of

Animals possess nerve network or nervous system to respond to their environment. But the single called Amoeba does not possesses any nerve cell, so, how it come to know whether a particle it encounters is a grain or sand and not its dinner

Match list I with list II and choose the correction option

List I (Organism                                         List II (Excretory structure)
(A) Cockroach                                              (1) Nephridia
(B) Clarias                                                     (2) Malpighian tubules
(C) Earthworm                                              (3) Kidneys
(D) Balanoglossus                                        (4) Flame cells
(E) Flatworm                                                (5) Proboscis gland

Blood glands of Pheretima take part in

Which of the following is correctly stated as happens in the common cockroach?

Which type of coelom is found in frog ___________.