Which of the following types of microscopes provides a 3-dimensional image of the surface of cells and viruses?

A. Transmission electron microscope
B. Scanning electron microscope
C. Brightfield microscope
D. Darkfield microscope


Ans: B. Scanning electron microscope

Biology & Microbiology

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What is the primary function of the endocrine system?

a. conduction b. contraction c. hormonal control of the body d. protection against disease e. cell production

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Which of the following is true of type 1 diabetes?

a. Insulin levels are near normal. b. Target cells do not respond normally to insulin. c. It is the more common form of diabetes. d. It is thought to be an autoimmune disease. e. It usually occurs in middle-aged people.

Biology & Microbiology

Culture of patient specimens to detect pathogens is usually done on blood agar plates only.

a. true b. false

Biology & Microbiology

The process in which carbon from an inorganic source, such as carbon dioxide, gets incorporated into an organic molecule is called ____________.

A. carbon fixation B. the Calvin–Benson cycle C. light-dependent reaction D. metabolic regeneration E. phosphate-group transfer

Biology & Microbiology