For many species, there are often regional differences in their genes, although most of the time this differences aren't noticeable in their outward appearance.
Answer: I think the answer is C.
Explanation:
B - Many Agricultural practices bear some pretty bad impacts on the environment. A, C and D are incorrect.
Answer:
Antibiotics are not effective for new strains and so new resistant pathogens survive and reproduce, which leads to the increasing population of resistant pathogens and spread rapidly.
Bacteria can evolve and adapt themselves quickly as they are able to reproduce at a fast rate. Mutations of bacteria produce new strains that are resistant to certain antibiotics, such as penicillin, and cannot be destroyed by the antibiotic so they spread more rapidly.
Answer:
i see this was posted 3 days ago, do you still need help with this question?
Explanation:
