One of the means of indirect transmission of a disease is

(a)

sneezing

(b)

coughing

(c)

vectors

(d)

droplet infection

Mosquito borne viral diseases are

(a)

malaria and yellow fever

(b)

dengue and chikungunya

(c)

filariasis and typhus

(d)

kala azar and diptheria

Which one of the following is a pair of viral disease?

(a)

Filariasis, AIDS

(b)

Common cold, AIDS

(c)

Dysentry, Common cold

(d)

Typhoid, Tuberculosis

The primary organ infected during tuberculosis is

(a)

bone marrow

(b)

intestine

(c)

spleen

(d)

lungs

The organ affected by jaundice is

(a)

liver

(b)

lungs

(c)

kidney

(d)

brain

Poliomyelitis virus which causes infantile paralysis enters the body through

(a)

skin

(b)

mouth and nose

(c)

ears

(d)

eye

Which substance is produced within an organism to prevent the spread of microorganism?

(a)

Antiseptics

(b)

Antibiotics

(c)

Antibodies

(d)

All the above

Which of the following micro organism helps in fermentation?

(a)

Yeast

(b)

Mould

(c)

Mushroom

(d)

Rhizopus

The most common carrier of communicable diseases is __________.

(a)

ant

(b)

dragonfly

(c)

lizard

(d)

housefly

This bacteria gives special aroma to coffee beans and tea leaves.

(a)

Bacillus megaterium

(b)

Lactobacillus

(c)

Aspergillus niger

(d)

None