Fossils from the ____ would be the oldest in the Grand Canyon

a. hermit shale
b. redwall limestone
c. temple butte formation
d. bright angel shale
e. vishnu basement rocks


ANSWER: e

Biology & Microbiology

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Match the following items with the correct phrases.

_______1. An arachnid ectoparasite; one species causes human scabies; larval forms of some species are referred to as “chiggers.” _______2. An insect ectoparasite; the vector of plague. _______3. An arachnid ectoparasite; the vector of Rocky Mountain spotted fever. _______4. Pediculus humanus var. corporus; an infestation with these insects is known as pediculosis; in the trenches in World War I, these were known as “cooties.” _______5. An insect called Phthirus pubis. _______6. An arachnid ectoparasite; the vector of Lyme disease. a. body louse b. “crab” louse c. flea d. mite e. tick

Biology & Microbiology

Argon has 18 protons. How many electrons are in its third energy level?

a. 2 b. 4 c. 6 d. 8 e. 10

Biology & Microbiology

The plant cell organelle most analogous to the animal cell endosome is the

A) provacuole. B) lysosome. C) peroxisome. D) glyoxysome. E) None of the above are analogous.

Biology & Microbiology

In microscopy, the term resolution

A) refers to the ability to distinguish fine structure and detail in a specimen. B) is the same as the total magnification of a specimen. C) is improved when longer wavelengths of light are employed. D) is only observed in stained specimens. E) refers to magnification when using the electron microscope.

Biology & Microbiology