Carbohydrates are composed of carbon, hydrogen, and oxygen atoms, The family of carbohydrates includes both simple and complex sugars. Glucose & fructose are examples of simple sugars, and starch, glycogen, and cellulose are all...
Gas exchange is the process of obtaining oxygen either directly from the air as in the case of unicellular organisms or by a respiratory system as in the case of multicellular organisms and releasing...
