DIGESTIVE SYSTEM: These system is channel for the consumption and digestion of food molecules. RESPIRATORY SYSTEM: These system is responsible for the inhalation and exhalation of air. ENDOCRINE SYSTEM: These system controls the amount of chemical substance secreted in the body. With these, we see that after consumption of food, for a chemical reaction to … Read more

R- red G- green B- blue

Sound waves                                      radio waves longitudinal                                          transverse low speed (340m/s)                  … Read more

When iron is exposed to water and air (oxygen), this causes changes in the chemical component of the iron oxide to di iron. This could be prevented by electroplating, galvanizing, painting, greasing,.

The enzymes in our body are all proteinous in nature which implies that they are proteins like ptyalin, renin etc

The right answer is nucleic acid protein (RNA) ribonucleic acid.