Answer:may very from person to person
Explanation:
Answer:
They have increased the amount of certain organisms (a lot of crops and such) and made the soil healthier. Also, other organisms that may feed on this are having more food.
Explanation:
A the answer is a.............
The reason for that is the song gets imprinted on the young birds. Have in mind that birds rised alone will sing but the local pattern will not influence the singing of that bird. So if the birds listen an adult male sing they will help the young ones to get their singing as they will serve as the closest reference. Still have in mind that young birds that are alone can also sing but in a different way, not the one proposed by the environment.
