Select the part whose main job is to break down sugar to release energy that an animal cell can use

What does it mean when a government decides to do something?

What is the name for the gaseous sphere surrounding earth

Which of the following statements proves that scientific knowledge changed due to the discovery of the fossil of a hadrosaur in north dakota? hadrosaurs were better runners than earlier thought. hadrosaurs had no pattern on their skin as expected. the length of the hadrosaur was shorter than previously thought. the muscular structure of hadrosaurs was less developed than expected.