What is incorrect regarding Periplaneta americana?
1. Excretion by malpighian tubules
2. Hemolymph delivering oxygen to tissues
3. Paurometabolous development
4. Mosaic vision
Which of the following does not help in excretion in Periplaneta Americana?
1. Fat body
2. Urecose glands
3. Nephrocytes
4. None of these
The mouth part of the cockroach shown in the given diagram acts as a/an:
1. Upper lip
2. Tongue
3. Lower lip
4. Uvula
Match each item in Column I with one item in Column II regarding anatomy of cockroach and choose your answer from the codes given below :
|
Column I |
|
Column II |
I. |
Testes |
1. |
2nd to 6th |
II. |
Ovaries |
2. |
4th to 6th |
III. |
Spermatheca |
3. |
6th |
IV. |
Mushroom gland |
4. |
6th-7th |
|
I |
II |
III |
IV |
1. |
1 |
2 |
3 |
4 |
2. |
2 |
1 |
4 |
3 |
3. |
2 |
1 |
3 |
4 |
4. |
1 |
2 |
4 |
3 |
Match each item in Column I with one item in Column II regarding anatomy of cockroach and choose your answer from the codes given below.
Column I (structure) |
Column II (abdominal segment) |
I. Testes II. Ovaries III. Spermatheca IV. Mushroom gland |
1. 2nd to 6th 2. 4th to 6th 3. 6th 4. 6th - 7th |
Codes:
I II III IV
1. 1 2 3 4
2. 2 1 4 3
3. 2 1 3 4
4. 1 2 4 3
In male cockroaches, sperms are stored in which part of the reproductive system?
(1) Seminal vesicles
(2) Mushroom glands
(3) Testes
(4) Vas deferens
The terga sterna and pleura of cockroach body are joined by
1. cementing glue
2. muscular issue
3. arthrodial membrane
4. cartilage
What external changes are visible after the last moult of a cockroach nymph?
1. Mandible become harder
2. Anal cerci develop
3. Both fore wings and hind wings develop
4. Labium develops
Select the correct statement from the ones given below with respect to Periplaneta americana.
(1) Nervous system dorsally, consists of segmentally arranged ganglia joined by a pair of longitudinal connectives
(2) Males bear a pair of short thread like anal styles
(3) There are 16 very long Malpighian tubules present at the junctions of midgut and hindgut
(4) Grinding of food is carried out only by the mouth parts
Which of the following is correctly states as it happens in the common cockroach?
(1) Oxygen is transported by haemoglobin in blood
(2) Nitrogenous excretory product is urea
(3) The food is ground by mandibles and gizzard
(4) malpighian tubules are excretory organs projecting out from the colon