EASY
Earn 100
Read the following statements about the cockroach and select the option:
I. Forewings (mesothoracic) called tegmina are opaque dark and leathery and cover the hind wings.
II. Head is formed by the fusion of eight segments and shows little mobility.
III. Genital pouch in male is formed by 9th and 10th terga and 9th sternum.
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Important Questions on Study of Animal Type : Cockroach
MEDIUM
Study the following and pick up the correct statements.
I. Contraction of the dorsal longitudinal muscles elevates the wings in the cockroach.
II. Rectal papillae help in water conservation in cockroaches.
III. The second chamber of the heart from the anterior part lies in the metathorax of the cockroach.
IV. Inner cuticular lining of the trachea of the cockroach is called the intima.
MEDIUM
Read the following statements about cockroach.
(i) In male cockroach, a characteristic mushroom shaped gland is present in the abdominal segments which functions as an accessory reproductive gland.
(ii) Cockroach is uricotelic.
(iii) The fat body and uricose glands are glandular in function.
(iv) Blood from sinuses enter heart through ostia and is pumped anteriorly to sinuses again.
Which of the above statements are correct?
MEDIUM
What external changes are visible after the last moulting of a cockroach nymph?
HARD
Arrange the following structures according to their decreasing number.
Hepatic or gastric caeca
Malpighian tubules
Ommatidia
MEDIUM
Mark the incorrect answer regarding the number of structure in cockroach.
MEDIUM
The life span of cockroaches in general is:
**No options seemed correct. One of the option modified.**
MEDIUM
Which part of the alimentary canal of cockroach has an outer layer of thick circular muscles and inner cuticle forming six highly chitinous plates called teeth?
MEDIUM
Which one of the following statements is incorrect?
MEDIUM
Which of the following statements is correct regarding cockroach?
MEDIUM
Which of these statements is not true about cockroaches?
EASY
Which of the following is correct about embryo development in Periplaneta americana?
HARD
Recognise the figure and find out the CORRECT matching.
EASY
Which are the two common Indian cockroaches?
MEDIUM
Select the incorrect statement regarding the cockroach.
HARD
Consider the following four statements and select the correct option stating which ones are true and which ones are false .
(i) In male cockroach, genital pouch or chamber lies at the hind end of abdomen bounded dorsally by and terga and ventrally by the sternum.
(ii) In cockroaches, the haemolymph is composed of colourless plasma and haemocytes.
(iii) In a 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 times to reach the adult form.
| (i) | ||||
| (ii) | ||||
| (iii) | ||||
| (iv) |
EASY
Choose the CORRECT statement.
EASY
Periplaneta americana differs from Blatta orientalis in:
HARD
Which of the following statement is correct?
EASY
Read the following four statements (A-D):
(A) On average, a female cockroach produces 9-10 oothecae, each containing 14-16 eggs.
(B) The development of P. Americana is ametabolous.
(C) The nymph grows by moulting about 20 times to reach the adult form.
(D) In male cockroach, a mushroom-shaped gland is present in the 6th-7th abdominal segments.
How many of the above statements are wrong?
MEDIUM
The terga, sterna and pleura of cockroach body are joined by:
