Which of the following happens to chromosomes during prophase? A. They move to opposite sides of the cell.
B. They become centrioles.
C. They condense.
D. They disappear.

They condense.

Explanation:

The complex of Dna and proteins contained in the nucleus, known as chromatin,condenses. The chromatin coils and becomes increasingly compact, resulting in the formation of visible chromosomes The sister chromatids are pairs of identical copies of DNA joined at a point called centromere.

b.

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.