Correct answer: (b) Beehives
Which of the following is not a use of micro-organisms ?
(a) preparation of medicines (or drugas)
(b) preparation of food by photosynthesis
(c) recycling of materials in nature
(d) increasing the fertility of soil
Make a lsit of algae and fungi that have a commercial value as source of food, chemicals, medicines and fodder.
Select the correct alternatives.
_________ is a source of wax and is used in the preparation of medicines, polish, etc.