How could you distinguish between a root hair versus a very small root?
A. Root hairs are white, while roots are brown.
B. Root hairs only absorb water, not nutrients like roots.
C. The epidermis of a root hair is thinner than the epidermis of a root.
D. Root hairs do not have a cuticle.
E. Root hairs are extensions of single cells, while roots are multicellular.
Answer: E
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Human DNA and chimpanzee DNA differ by
A) about 1%. B) about 3%. C) more than 10%. D) the same amount that human DNA differs from orangutan DNA.
Match the stain with it's role in the staining procedure
Heating process A) Mordant for Gram Stains B) Mordant for Endospore Stain C) Primary stain for Endospore Stain D) Secondary stain for Acid-Fast stain
Which is mismatched?
A. Epidemic typhus - body louse feces B. Murine typhus - flea feces C. Rickettsial pox - mite bite D. Rocky Mountain spotted fever - tick bite E. Human ehrlichiosis - flea bite
The most important pigment(s) for the process of photosynthesis is(are):
a. carotenoids. b. chlorophyll a. c. chlorophyll b. d. chlorophyll c. e. All of these are equally important for photosynthesis.