Compare the two maps showing bird declines with the two land vertebrate maps. What can you learn from data for just one group of land vertebrates (e. g., birds) that the compiled data for all vertebrates cannot show you?

2%? i tried finding the exact sorry if it's not 100% correct ; -;

the question isn't complete here so i can't right an answer '_'

voluntary muscles are controlled by the cerebellum.

some inherited genetic mutations can be good for the offspring, so the answer is different genetic mutations cause many forms of cancer.