When you press on the gums, release the pressure, and then measure the time it takes for the gums to return to the starting color, you're checking

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Which phrase best describes a biogeochemical cycle? A.) The movement of a chemical substance through Earth's bodies of water. B.) The movement of chemical substance between the solid, liquid, and gaseous states of matter. C.

What type of spore is produce in a fern plant

The two strands are held tightly together by

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Which of the following correctly arranges the planets by the size of their diameter? A) Uranus < Neptune < Mercury < Earth B) Earth < Mercury < Neptune < Uranus C) Mercury < Earth < Saturn < Jupiter D) Jupiter < Saturn < Earth < Mercury

How does ultra radiation cause skin cancer

How many ribose molecules are found in ATP?

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According to "Life Without Gravity," why can astronauts' muscles become weak? A. Without gravity, the blood is rerouted from the legs to the head. B. Without gravity, the body "grows" by as much as several inches. C.