The main function of the tissue is to initiate growth in new cells of seedlings at the tips of root and shoot. Identify the tissue * Apical meristem
Lateral meristem
Parenchyma
Collenchyma

i believe it is "they are not used up by reactions" as the answer to your question, text me back if this is correct because i just learned this.

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.

since there are no options posted i'll give you a few examples.

a dolphin's flipper, bird's wing, cat's leg.