Д/з по английскому Exercise 5. Insert prepositions or adverbs: Minerals, like vitamins, are needed … comparatively small amounts but are nevertheless essential food constituents. … examination purposes the most important ones are calcium, phosphorus and iron. Calcium and phosphorus, together … vitamin D, are necessary for bone and tooth formation. Deficiency has the same effect as … vitamin D. Iron is necessary … the production of haemoglobin. Deficiency causes anaemia.
Minerals, like vitamins, are needed in comparatively small amounts but are nevertheless essential food constituents. For examination purposes the most important ones are calcium, phosphorus, and iron. Calcium and phosphorus, together with vitamin D, are necessary for bone and tooth formation. Deficiency has the same effect as a vitamin D. Iron is necessary for the production of haemoglobin. Deficiency causes anaemia.
Minerals, like vitamins, are needed in comparatively small amounts but are nevertheless essential food constituents. For examination purposes the most important ones are calcium, phosphorus, and iron.
Calcium and phosphorus, together with vitamin D, are necessary for bone and tooth formation. Deficiency has the same effect as a vitamin D.
Iron is necessary for the production of haemoglobin. Deficiency causes anaemia.