Generating heat in order to start a reaction uses energy to begin with. Enzymes however reduce the activation energy and can only function (usually) within a narrow temperature range, using less energy. Enzymes are used because they are more efficient.
Answer: A. 7 protons
Explanation: Just count the number of P's to get your neutrons.
Electron microscope.
An electron microscope has a larger zoom than a light microscope. Thus, an electron microscope will be able to see the internal structure of a nucleolus whereas a light microscope will not be able to.
Answer:
Genetics
Explanation:
Heredity refers to one's genes
Answer:The amount of each element that begins photosynthesis equals the amount of each element that is produced
Explanation: