Electron microscopes differ from light microscopes in that

a. electrons are used instead of light.
b. magnetic lenses replace glass lenses.
c. the electron path had to maintained in a high vacuum.
d. a, b, and c are all true.


c

Biology & Microbiology

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In addition to osmoregulation, the kidneys participate in regulating blood pressure. Specialized cells of the efferent arteriole, called the ____ apparatus, secrete the hormone renin in response to a drop in blood pressure

This, in turn, triggers additional responses that help raise blood pressure. Fill in the blank with the appropriate word.

Biology & Microbiology

what is African Jaw Tumor also known as?

What will be an ideal response?

Biology & Microbiology

Imagine you are examining a small mammal that lives under desert conditions and is water deprived. You would predict that levels of the hormone ADH in its blood would be _____ and that its urine would be ______ than its blood.

A. high, more concentrated B. high, less concentrated C. low, more concentrated D. low, less concentrated E. high, no more concentrated

Biology & Microbiology

Which antibodies bind complement?

A) IgA B) IgB C) IgM D) IgC

Biology & Microbiology