Which of the following does not behave as a sense organ in cockroach?

1. Maxillary palps

2. Labial palps

3. Anal cerci

4. Phallomeres

Choose the incorrect statement with respect to cockroach

1. Haemocoel contains haemolymph which contains colourless plasma and haemocytes

2. Nervous system consists of segmentally arranged ganglia, six in thorax and nine in abdomen

3. Mushroom gland is present in 6th – 7th abdominal segment in male cockroach

4. Proventriculus has an outer layer of thick circular muscles and inner thick cuticle forming teeth

A specialised connective tissue containing chondrocytes can be found at/in

(1) Myocardium

(2) Blood vessels

(3) Tip of nose

(4) Tendons

Which of the following is incorrect statement with respect to cockroach?

1. The nymph grows by moulting about 13 times to reach the adult form

2. The outermost covering of spermatophore is formed by secretions of spermatheca

3. Mushroom glands are accessory reproductive glands in a male

4. Each compound eye consists of nearly 2000 ommatidia

Choose the incorrect match with respect to total number of following structures in cockroach

1. Spiracles – 10 pairs

2. Gastric caeca – 6-8

3. Malpighian tubules – 100-150

4. Ommatidia – 2000

Select the odd one with respect to secretions of exocrine glands.

1. Saliva

2. Mucus

3. Insulin

4. Milk

Skeletal muscle fibres are

1. Branched, spindle-shaped and uninucleated

2. Striped, multinucleated and unbranched

3. Unbranched, involuntary and cylindrical in shape

4. Voluntary, unbranched and uninucleated

Select the correct statement with respect to Periplaneta americana.

1. Paurometabolous development with 9-10 nymphal stages.

2. A pair of spermatheca is present in the 6th segment of only female cockroach.

3. Anal styles present exclusively in males are attached to 10th tergite.

4. Mesothoracic wings are opaque, dark and leathery in appearance and are used in flight.

See the figures given below and select the mismatch with respect to identification or corresponding feature listed.

Among the options given below, simple epithelium is not found at which location?

1. Air sacs of lungs

2. PCT

3. Inner surface of bronchioles and fallopian tubes

4. Inner lining of ducts of salivary glands