Which state of matter is best as a thermal insulator? Give an example.

What is an example of a spontaneous exergonic reaction?

What role do the bones of the skeletal system play in breathing?

What is the role of gills? a. to pump blood b. to bring oxygen into the animal c. to break up food d. to be a body cavity

10. Chemical changes result in new substances, but physical changes do not. Which process is an example of a chemical change? A. chopping a tree B. cooking a steak C. heating a cup of tea D. drying clothes in the dryer

How would selective breeding be used to improve the racing ability of horses

19. RNAi is a technique that silences genes by targeting them and degrading their mRNA. How can this technique be used in scientific laboratories? A. RNAi allows scientists to turn off one gene specifically to study its effect. B.

The Barringer crater in Arizona contains a mineral, stishovite, only known to form under intense pressures caused by a high-speed impact. Which event most likely formed the Barringer crater?

How do vaccines prevent disease?

Enzymes function best at the blank pH level

What causes metamorphic rocks to form from existing rocks?