(A) Streptomyces sp.
(B) Treponema pallidum
(C) Spirillum volutans
(D) Corynebacterium diphtheriae

(A) electron beams and magnetic fields
(B) light waves
(C) magnetic fields
(D) electron beams

(A) Shortest wavelength of visible light used
(B) Longest wavelength of visible light used
(C) An objective with minimum numerical aperture
(D) Shortest wavelength of visible light used and an objective with the maximum numerical aperture

(A) 1mm in diameter
(B) 0.5 to 1.0 micrometer in diameter
(C) 2mm in diameter
(D) 2 micrometer in diameter

(A) Alcoholic beverages
(B) Fermented dairy products
(C) Breads
(D) All of the mentioned

(A) Condenser lens
(B) Magnifying lens
(C) Objective lens
(D) Eyepiece lens

(A) Cyanobacteria, Fungi and Viruses
(B) Viruses
(C) Cyanobacteria
(D) Fungi

(A) Edwin John Butler
(B) Ferdinand Cohn
(C) Robert Koch
(D) Antoni van Leeuwenhoek

(A) Study of molecules that are visible to human eyes
(B) Study of animals and their family
(C) Study of organisms that are not visible to naked eyes
(D) Study of microscope