Question

Match the columns I, II and III, and choose the CORRECT combination from the options given regarding Cockroach

	Column I		Column II		Column III
a.	Testes	K.	$2^{n d} \, - \, 6^{t h}$ segments	w.	1 pair
b.	Ovaries	L.	$4^{t h} \, - \, 6^{t h}$ segments	x.	8 ovarioles
c.	Spermathecae	M.	$6^{t h} \, - \, 7^{t h}$ segments	y.	bilobed
d.	Mushroom	N.	$6^{t h}$ segment	z.	single

• A. (a)-(L)-(y), (b)-(K)-(x), (c)-(M)-(z), (d)-(N)-(w)
• B. (a)-(L)-(w), (b)-(K)-(x), (c)-(N)-(y), (d)-(M)-(z)
• C. (a)-(K)-(x), (b)-(L)-(w), (c)-(N)-(y), (d)-(M)-(z)
• D. (a)-(N)-(x), (b)-(M)-(w), (c)-(K)-(z), (d)-(L)-(y)

Answer 1

Answer: (B)

The male reproductive system in cockroaches consist of a pair of testes, a pair of vas deferens, ejaculatory duct, seminal vesicle, mushroom glands, and external genitalia. Testes are present at $4^{t h} \, - \, 6^{t h}$ segments while the mushroom gland is present in $6^{t h} \, - \, 7^{t h}$ segments. The female reproductive system consists of a pair of ovaries, a pair of oviducts, a common oviduct i.e. vagina, genital chamber and external genitalia. The genital chamber shows the opening of spermathecae which is a storehouse of sperms. Ovaries extend from $2^{n d} \, - \, 6^{t h}$ segments and show many tubules known as ovarioles. Spermathecae is in the $6^{t h}$ segment.