Question

(i) Give the common name of Periplaneta americana.
(ii) How many spermathecae are found in earthworm?
(iii) What is the position of ovaries in cockroach ?
(iv) How many segments are present in the abdomen of cockroach?
(v) Where do you find Malpighian tubules ?

Answer 1

(i) The common name of periplaneta americana is American cockroach.
(ii) There are 4 pairs of spermathecae found in earthworm.
(iii) The position of ovaries in cockroach is under the 4th to 6th abdominal terga.
(iv) 10 segments in the abdomen of adult cockroach.
(v) They are present at the junction of mid gut and hind gut of the alimentary canal of Cockroach