Which of the following statements is correct regarding cockroach?
1. Compound eye is also called as ocellus
2. Spiracle helps in excretion
3. Phallomere is present in female cockroach
4. Ventral nerve cord

One very special feature in earthworm (Pheretima) is that –
1. Fertilisation for eggs occurs inside the body
2. The typhlosole greatly increases the effective absorption area of the digested food in the intestine
3. The S- shaped setae embedded in the integument are the defensive weapons used against the enemies
4. It has a long dorsal tubular heart

Simple epithelium is a tissue in which the cells are
1. hardened and provide support to the organ
2. cemented directly to one another to form a single layer
3. continuously dividing to provide form to an organ
4. loosely connected to one another to form an irregular organ

The polysaccharide present in the matrix of a cartilage is known as
1. cartilagin
2. ossein
3. chondroitin
4. cassein

A piece of bone, such as femur of frog, if kept in dilute HCI for about a week will

During an injury, nasal septum gets damaged. For its restoration, which cartilage is preferred?
1. Hyaline cartilage
2. Elastic cartilage
3. Calcified cartilage
4. Fibro cartilage

Which cartilage is present at the end of long bones?

Collagen is a
1. fibrous protein
2. globular protein
3. lipid
4. carbohydrate

Which one of the following contains the largest quantity of extracellular material?
1. Myelinated nerve fibres
2. Striated muscle
3. Areolar tissue
4. Stratified epithelium

Mast cells of connective tissue contain
1. vasopressin and relaxin
2. heparin and histamine
3. heparin and calcitonin
4. serotonin and melanin