Apopulation of bacteria is treated with an antibiotic. because of variation in the population of bacteria, what is a possible outcome of the treatment? a) the population will increase rapidly. b) all of the bacteria will be resistant to the antibiotic. c) the population will be better able to obtain a food source. d) some of the bacteria may be resistant to the antibiotic and survive.

D

Explanation:

Variation in populations of any organism allows some to better survive in adverse conditions. With the application of antibiotics, the weakest individuals are killed off, the strongest to survive. Those bacteria are then able to reproduce. This is why it is essential to complete the full course of antibiotics as prescribed by your doctor, making sure to kill the stronger survivors.

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.