What type of microscope uses electrons to illuminate the sample?
a. Fluorescence microscope
b. All of them use electrons
c. Phase-contrast
d. Electron microscope
e. Light microscope
d
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The hypothalamus has a direct nervous system connection to the:
a. anterior pituitary b. posterior pituitary c. pancreas d. adrenal cortex e. thyroid
Microorganisms that live in severe habitats, such as very hot, acidic, or salty environments, are called ________.
A. halophiles B. thermophiles C. extremophiles D. barophiles E. psychrophiles
Coxiella burnetii reproduces in the ________ of a eukaryotic host cell.
A. cytoplasm B. nucleus C. phagolysosome D. endoplasmic reticulum
How can Leptospira interrogans be distinguished from other spirochetes?
A. It stains purple with the Gram stain. B. One end of the bacterium looks like a question mark. C. It is highly motile. D. It can be found in multiple locations in the body. E. It cannot be cultured on laboratory media.