Internal fertilization is not seen in

1. Birds

2. Reptiles

3. Frog

4. Mammals

Select the incorrect match with respect to animals and the type of nitrogenous waste excreted by them

Brain of cockroach supplies nerves to

1. Antennae

2. Compound eyes

3. Anal cerci

4. Both(1) & (2)

Haemolymph in cockroach is devoid of

1. Plasma

2. Haemocytes

3. Amino acids

4. Respiratory pigment

The heart receives blood from the sinuses through

1. Haemocoel

2. Alary muscles

3. Ostia

4. Aorta

Alary muscles play an important role in

1. Circulation of blood

2. Respiration

3. Body movement

4. Peristalsis

In cockroach, air from atmosphere enters by

1. Trachea

2. Tracheoies

3. Spiracles

4. Chitin

How many pairs of spiracles are found in cockroach?

1. 10

2. 20

3. 5

4. 25

The process through which air in tracheoles and dissolved gases in blood are exchanged is

1. Osmosis

2. Diffusion

3. Active transport

4. Facilitated diffusion

Exoskeleton of each segment in cockroach consists 

1. Dorsal tergum and a ventral sternum

2. Dorsal sternum and a ventral tergum

3. Sternum only

4. Tergum only