The scientist who first studied the world of microscopic life was
a. copernicus.
b. kepler.
c. leeuwenhoek.
d. bacon.

I believe the answer is C, Leeunwenhoek because Copernicus was an astronomer, Kepler was a mathematician and astronomer and I THINK Bacon was a philosopher. Out of the 4, Leeuwenhoek was the only one strictly known for being a microbiologist, not only that but he was the first. I hope this helped :)

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.