I think the best answer would be
<span>Test the variation in the amount of amylase produced by each individual before and after being presented with a bowl of pasta.</span>
Answer:
adenine, guanine, cytosine, or thymine
Igneous rocks<span> form from cooling magma or </span>lava<span>. </span>Sedimentary rocks<span> form when </span>sediments<span> settle out of </span>fluid<span>or air and become cemented together. </span>Metamorphic rocks<span> form when rocks are exposed to heat, pressure and/or </span>hydrothermal<span> solutions.</span>