What process uses analysis of the decay of atomic particles to determine exact age? 1- Radioactive dating
2- Law of superposition
3- Relative dating
4- Index fossils

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

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.

Speed is the ratio of the distance of an object moves to