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
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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.
what is African Jaw Tumor also known as?
What will be an ideal response?
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
Which antibodies bind complement?
A) IgA B) IgB C) IgM D) IgC