Question : Rhizobium is a kind of:

Option 1: Photosynthetic bacteria

Option 2: Symbiotic bacteria

Option 3: Parasitic bacteria

Option 4: Saprophytic bacteria

Question : Which of the following causes Malaria ?

Option 1: Insect

Option 2: Bacteria

Option 3: Protozoa

Option 4: Virus

Question : The disease that is caused by virus is :

Option 1: Typhoid

Option 2: Cholera

Option 3: Common cold

Option 4: Malaria

Question : Rinderpest disease of cattle is caused by:

Option 1: Insects

Option 2: Bacteria

Option 3: Virus

Option 4: Protozoa

Question : Comprehension:
In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank.
A pathogen is a 1_____________, virus, parasite, or fungus that can cause disease within the body. Each pathogen is made up of several subparts, usually unique to that specific pathogen and the 2_____________ it causes. The subpart of a pathogen that causes the formation of antibodies is called an 3________. The antibodies produced in response to the pathogen’s antigen are an important part of the 4___________ system. You can consider antibodies as the 5_______ in your body’s defence system.
Question:
Select the most appropriate option to fill in the blank number 2.

Option 1: remedy

Option 2: cure

Option 3: aftermath

Option 4: disease