Position of testis in Periplaneta americana
Position of testis in Periplaneta americana
- [AIIMS 2019]
- A
$7^{\text {th }}, 8^{\text {th }}, 9 t ^{ h }$ abdominal segments
- B
$5^{\text {th }}, 6^{\text {th }}$ abdominal segments
- C
$8^{\text {th }}, 9^{\text {th }}, 10^{\text {th }}$ abdominal segments
- D
$4^{\text {th }}, 5^{\text {th }}, 6^{\text {th }}$ abdominal segments
Similar Questions
Cescribe the Respiratory cavities of cockroach.
Cescribe the Respiratory cavities of cockroach.
Which of the following statements is incorrect?
Which of the following statements is incorrect?
- [NEET 2019]
Which of the following statement(s) is/are correct regarding respiratory system of cockroach ?
($i$) It consists of a network of trachea, that open through $12$ pairs of small holes called spiracles present on the lateral side of the body.
($ii$) Thin branching tubes carry oxygen from the air to all the parts.
($iii$) The opening of the spiracles is regulated by sphincters.
($iv$) Exchange of gases take place at the tracheoles by diffusion.
Which of the following statement(s) is/are correct regarding respiratory system of cockroach ?
($i$) It consists of a network of trachea, that open through $12$ pairs of small holes called spiracles present on the lateral side of the body.
($ii$) Thin branching tubes carry oxygen from the air to all the parts.
($iii$) The opening of the spiracles is regulated by sphincters.
($iv$) Exchange of gases take place at the tracheoles by diffusion.
In male cockroaches, sperms are stored in which part of the reproductive system?
In male cockroaches, sperms are stored in which part of the reproductive system?
- [NEET 2016]
Give scientific reasons : Cockroaches are harmful for human life.
Give scientific reasons : Cockroaches are harmful for human life.