During metabolic reactions, an electron source : a) gets oxidized; therefore you must reverse the reaction you look up in the redox tower.
b) gets reduced; therefore you must reverse the reaction you look up in the redox tower.
c) gets oxidized; therefore you must NOT reverse the reaction you look up in the redox tower.
d) gets reduced; therefore you must NOT reverse the reaction you look up in the redox tower.

Can create a hboth of these instruments can measure wind speed. doppler radar and psychrometer anemometer and hygrometer doppler radar and anemometer radiosonde and psychrometer

Hormones are chemical molecules produced by endocrine glands. one such endocrine gland is the thyroid gland, which synthesizes the thyroid hormone, which in turn affects the heart muscles. which two statements describe the probable reason for the function of the hormone? the cells in the heart have specific receptors that allow for the intake of hormones. the heart and the endocrine glands have the exact same types of cells. all cells make the same types of hormones. thyroid hormones show their effect on the heart by means of specialized cells. thyroid cells and cardiac cells have different dna.

Which of the following must be true for a fossil organism to be useful as an index fossil? a. the fossil organism must be widespread geographically. b. the fossil organism must be abundant. c. the fossil organism must be limited to a short span of geologic time. d. all of the above.