Natural selection requires that individuals in a population are

Natural selection refers to the procedure where the species get better adapted to their surroundings and seem to produce and survive more offspring. The theory is considered to be the prime procedure, which brings about the process of evolution.

Natural selection needs different traits among the species in a population, which could be passed on or inherited onto the next generation. These distinct traits will modify over the generations or evolve.

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

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.