Which of these is directly involved in transporting nutrients from the sugar solution into the yeast?

 Yeast to get glucose, the cells must use active transport to move glucose up its concentration gradient. Yeast cells take up glucose to use as their main source of energy. Typically, glucose concentrations outside yeast cells are lower than glucose concentrations inside the cells. 

b c a d mark me

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.