In order to support his theory of evolutionary change, charles darwin concentrated his studies on the many species of finches in the galapagos islands. darwin noted that many of the birds had different shapes and styles of beak.

what is the possible explanation for what darwin observed?

a. people had bred the birds to have beaks with varied shapes and sizes

b. some birds had been injured by predators and were poor competitors.

c. the birds had beaks that were adapted for feeding differently

d. the brids had different beaks because the female preferred certain beak shapes over others

Which of these statements are true about scientific theories and hypothesis

Nh3 +02-no + h20 is unbalanced what is the balanced equation

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. c. prokaryotic poly-a tails aren't important, because prokaryotes don't have nuclei. d. prokaryotic poly-a tails have other functions, because prokaryotes don't have nuclei.