Climate change is causing the average annual temperature to increase. birds that have adapted to temperatures in their environment must find a way to adapt. if temperatures warm up due to human activities, which adaptation are the birds most likely to make?

I think it's logical to conclude that birds would first attempt to seek out climates with a temperature they're more well adapted to. It depends on the type of bird and how well suited they are for long flights, but I would imagine birds would quickly or slowly fly/migrate to new areas.

the answer to your question is:

c. complementary base-pairing