In order to get an ion to move against its concentration gradient (from low to high), the cell membrane needs a:

NFPA® 10 requires inspection of portable fire extinguishers at least:

A. after every use. B. every three months. C. once every six months. D. once a year.

After being treated with medication for hyperthyroidism, the cat was considered _____________ (having a normally functioning thyroid gland)

Fill in the blank(s) with correct word