All of the following statements about carbohydrates are true except: group of answer choices they are composed of carbon, hydrogen, and oxygen.

The difference between the atomic number of an element and the element’s atomic mass is the number of ions.

An animal cell loses the ability to convert energy stored in food to energy that the cell can use. which of the cell's organelles has stopped working? a. the mitochondria b. the nucleus c. the vacuoles d. the endoplasmic reticulum

Which of these statements best explains why space exploration should be encouraged? it prepares humans to live without oxygen. it dispel myths about objects in space. it prevents comets and asteroids from striking earth. it creates technology to absorb harmful radiations in space.