Question

Farmers often keep large numbers of cattle together. Farmers used to give cattle food which had antibiotics added to it.Adding antibiotics to the food of cattle is now banned in many countries. Use your knowledge of selection to explain why adding antibiotics was banned

Answer 1

The use of antibiotics in livestock feed has been banned in many countries due to the development of antibiotic resistance. This can make the treatment of diseases with antibiotics much more difficult.

Step-by-step explanation:

The use of antibiotics in livestock feed has been banned in many countries due to the development of antibiotic resistance. When antibiotics are added to animal feed, the bacteria in the animals intestines are exposed to low doses of the drugs. Over time, this exposure leads to the selection of antibiotic-resistant bacteria that can be transferred to humans. This can make the treatment of diseases with antibiotics much more difficult.