One very special feature in the earthworm Pheretima is that:
 

1.	the typhlosole greatly increases the effective absorption area of the digested food in the intestine
2.	the S-shaped setae embedded in the integument are the defensive weapons used against the enemies
3.	it has a long dorsal tubular heart
4.	fertilization of eggs occurs inside the body

Which of the following is not a characteristic of Periplaneta americana?

1. Uricotelism

2. Mosaic vision

3. Dioecious

4. Holometabolous development

Which of the following correctly describes the location of some body parts in the earthworm Pheretima?

Which one of the following is the correct pairing of a body part and the kind of muscle tissue that moves it?

1. Heart wall- Involuntary unstriated muscle

2. Biceps of the upper arm- Smooth muscle fibers

3. Abdominal wall- Smooth muscle

4. Iris- Involuntary smooth muscle

If a live earthworm is pricked with a needle on its outer surface without damaging its gut, the fluid that comes out is:

1. excretory fluid

2. coelomic fluid

3. haemolymph

4. slimy mucus

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

Mast cells secrete:

1. hippurin

2. myoglobin

3. histamine

4. haemoglobin

Which of the following tissue is vascular?

1. Cowpat bone

2. Skeletal muscle

3. Stratified squamous epithelium

4. Adipose tissue

Six highly chitinous plate-like teeth are found in ............... of cockroach.

1. Mandible

2. gizzard

3. Maxilla

4. rectum