Cells in multi-cellular organisms
a) all look the same
b) all have the same function
c) are often quite different from each other
d) are the same size in every part of the organism

Other than earth, is also known to have magnetic pole reversal? a: venus b: mars c: earths moon d: the sun

The two tubes contain bromothymol blue. after 24 hours, what will the color of the water be in tube b? a. green (it won't change) b. yellow c. blue d. colorless (clear)

How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.