Definition: This is a machine that converts electrical energy into mechanical energy.

During photosynthesis, hydrogen ions are most directly used to in the chloroplast pictured above. a) make glucose b) make chlorophyll c) produce carbon dioxide d) drive the production of atp

Which of these internal feedback reactions does not need your brain? oa. your leg jumping when it is hit by a reflex hammer b. your deeper breathing when you need more oxygen c. your body temperature rising when you have an infection d. your heart beating faster when you are in danger

2.) insulin is needed to your cells take in sugar from your blood. after you eat a candy bar, will your insulin gene be expressed or repressed? 3.) all cells have the same dna, and they all make the same proteins. true or false? the answers are 2.) expressed3.) false