30 POINTS! a. Why is cold water used in the beaker?
b. How could you identify the colorless liquid in tube B as water?

Muscle fiber i think that i right

The main types of electromagnetic radiation. radio  waves have  the lowest frequencies  and  longest  wavelengths, while gamma  waves have highest frequencies  and shortest wavelengths. the wavelengths vary across the electromagnetic spectrum from about 10–15 m to more than 104 m.hope it !