Answer:
Atomic mass is defined as the number of protons and neutrons in an atom, where each proton and neutron has a mass of approximately 1 amu (1.0073 and 1.0087, respectively). The electrons within an atom are so miniscule compared to protons and neutrons that their mass is negligible.
Explanation:
Answer:
ui66 ubgmgg88cvjfgk00 gvjt77
The answer is <span>Chemical digestion involves the breaking down of food with enzymes; </span><span>mechanical digestion is breaking down food by chewing and tearing with teeth.
Mechanical digestion means breaking down food mechanically. By chewing and tearing with teeth, food breaks down into smaller parts and no enzymes are used. Chemical digestion means breaking down food in a chemical manner. This is achieved by secreting enzymes, which break down chemical bond between food molecules.</span>
Gel is used as a tool or technique to separate or diagonse DNA fragments according to their size,helps in visualization
