In the given diagram of areolar tissue, identify a phagocytic cell:

1.	A	2.	B
3.	C	4.	D

Which of the following animal is correctly matched to their corresponding respiratory organ ?
1. Earthworm - Open circulatory system with
haemoglobin
2. Cockroach - Three pairs of spiracles in each
thorax
3. Frog in water - Skin and lungs
4. Frog on land - Skin, buccal cavity, lungs

The peculiar pungent smell of cockroach is
produced by the secretions of :
1. Pheromones

2. Flame cells

3. Abdominal glands

4. Cervical glands

The cockroach of genus Blatta also called
1. German cockroach
2. Australian cockroach
3. Oriental cockroach
4. American cockroach

Male cockroach and female cockroach can be differentiated by :
1. Ocelli

2. Anal cerci

3. Anal styles

4. Antennae

A frog has its brain crushed. But when pinched on the leg. The leg draws away. It is an example of

1.  neurotransmitter induced response

2.  simple reflex

3.  conditioned reflex

4.  automated motor response

Select the correct sequence of organs in the alimentary canal of cockroach starting from mouth:

Mast cells secrete:

1. hippurin

2. myoglobin

3. histamine

4. haemoglobin

The kind of tissue that forms the supportive structure in our pinna (external ears) is also found in:

1. Vertebrae

2. Nails

3. Ear ossicle

4. tip of the nose