(a) Give the common name of Periplaneta americana. (b) How many sperm

1.	(a) Give the common name of Periplaneta americana. (b) How many spermathecae found in cockroach ? (c) What is the position of ovaries in cockroach ? (d) How many segments are present in the abdomen of cockroach ? (e) Where do you find malpighian tubules ? (f) What is mosaic vision ?
Answer» (a) American cockroach. (b) One pair, present in 6th segment. (c) Between 2nd and 6th abdominal terga. (d) 10 segments. (e) At the beginning of ileum in cockroach. (f) Vision where several images of an object are formed by compound eye. Helps detect movement of objects very efficiently.

(a) Give the common name of Periplaneta americana. (b) How many spermathecae found in cockroach ? (c) What is the position of ovaries in cockroach ? (d) How many segments are present in the abdomen of cockroach ? (e) Where do you find malpighian tubules ? (f) What is mosaic vision ?

Answer»

(a) American cockroach.

(b) One pair, present in 6th segment.

(d) 10 segments.

(e) At the beginning of ileum in cockroach.

(f) Vision where several images of an object are formed by compound eye. Helps detect movement of objects very efficiently.