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Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F).
(i) In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum
(ii) In cockroach, the haemolymph is composed of colourless plasma and haemocytes
(iii) In female cockroach each ovary is formed of a group of ten ovarian tubules or ovarioles, containing a chain of developing ova
(iv) In cockroach the nymph grows by moulting about 6-13 times to reach the adult form
  • a)
    (i) - F, (ii) - T, (iii) - F, (iv) - T 
  • b)
    (i) - F, (ii) - F, (iii) - T, (iv) - T
  • c)
    (i) - T, (ii) - T, (iii) - F, (iv) - T 
  • d)
    (i) - T, (ii) - F, (iii) - T, (iv) - F
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Consider the following four statements (i) - (iv) and select the corre...
In female cockroach, each ovary is formed of a group of eight ovarian tubules or ovarioles, containing a chain of developing ova
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Consider the following four statements (i) - (iv) and select the corre...
**Statement (i):** In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum.

**Statement (ii):** In cockroach, the haemolymph is composed of colourless plasma and haemocytes.

**Statement (iii):** In female cockroach each ovary is formed of a group of ten ovarian tubules or ovarioles, containing a chain of developing ova.

**Statement (iv):** In cockroach the nymph grows by moulting about 6-13 times to reach the adult form.

Let's evaluate each statement:

**Statement (i): In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum.**
- This statement is **True (T)**. In male cockroaches, the genital pouch or chamber is indeed located at the hind end of the abdomen, bounded dorsally by the 9th and 10th terga (dorsal plates) and ventrally by the 9th sternum (ventral plate).

**Statement (ii): In cockroach, the haemolymph is composed of colourless plasma and haemocytes.**
- This statement is **True (T)**. The haemolymph of a cockroach is composed of colorless plasma and haemocytes (blood cells).

**Statement (iii): In female cockroach each ovary is formed of a group of ten ovarian tubules or ovarioles, containing a chain of developing ova.**
- This statement is **False (F)**. In female cockroaches, each ovary is formed of a group of eight ovarian tubules or ovarioles, containing a chain of developing ova. It is not ten ovarian tubules.

**Statement (iv): In cockroach the nymph grows by moulting about 6-13 times to reach the adult form.**
- This statement is **True (T)**. Cockroaches go through incomplete metamorphosis, where the young ones, called nymphs, resemble the adults but are smaller and lack wings. They grow by moulting their exoskeleton about 6-13 times before reaching the adult form.

Therefore, the correct option is **(c) (i) - T, (ii) - T, (iii) - F, (iv) - T**.
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Consider the following four statements (i) - (iv) and select the corre...
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Consider the following four statements (i) - (iv) and select the correct option stating which ones are true (T) and which ones are false (F).(i) In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by 9th and 10th terga and ventrally by the 9th sternum(ii) In cockroach, the haemolymph is composed of colourless plasma and haemocytes(iii) In female cockroach each ovary is formed of a group of ten ovarian tubules or ovarioles, containing a chain of developing ova(iv) In cockroach the nymph grows by moulting about 6-13 times to reach the adult forma)(i) - F, (ii) - T, (iii) - F, (iv) - Tb)(i) - F, (ii) - F, (iii) - T, (iv) - Tc)(i) - T, (ii) - T, (iii) - F, (iv) - Td)(i) - T, (ii) - F, (iii) - T, (iv) - FCorrect answer is option 'C'. Can you explain this answer?
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