"Fast flushers" are people who lack:

the ability to make proteins inside their cells.
enough alcohol in their diet.
a functional enzyme that metabolizes alcohol.
the enzyme needed to digest lactose.
the smarts to know when "enough is enough."


a functional enzyme that metabolizes alcohol.

Biology & Microbiology

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How does human activity drastically affect the reproductive success of salmon?

What will be an ideal response?

Biology & Microbiology

Referring to the illustration as a guide, if you were to put a stalk of celery into a mixture of water and food coloring, in which tissue would you expect to see the food coloring show later?


a. phloem
b. both xylem and phloem
c. xylem
d. none of these

Biology & Microbiology

Compared to the air a person inhales, the air that they exhale has

A. higher concentrations of both O2 and CO2 . B. a lower concentration of O2 and a higher concentration of CO2 . C. a higher concentration of O2 and a lower concentration of CO2 . D. lower concentrations of both O2 and CO2 . E. equal amounts of O2 and CO2.

Biology & Microbiology

Passive is movement

What will be an ideal response?

Biology & Microbiology