The drugs, which do not develop physiological dependence is 

1.	sedative and tranqualisers
2.	stimulation cocaine
3.	Opiates
4.	hallucinogens

Which type of immunoglobulin is/are abundantly found in foetus?

Human Immuno Virus (HIV) contain a protein coat and genetic material and is horse chestnut shaped

Typhoid fever is caused by a species of 

1. Streptococcus

2. Staphylococcus 

3. Salmonella

4. Mycobacterium 

HIV is a member of a group of viruses called

1. bacteriophages

2. geminiviruses

3. lysogenic viruses

4. retroviruses

Humoral immunity system is mediated by

1. B-cells

2. T-cells

3. NK-cell

4. plasma cells

The type of immunoglobulin present in the foetus are

Leukaemia is caused by

An autoimmune disease is

The main function of the white blood cell in the human intestine system is to 
1. Combat and destroy antigenic particles
2. produce antigens to combat antibodies
3. carry oxygen around the body 
4. transport antigens to B memory cells in the lymph nodes