The diagram below shows an undisturbed rock. A rock sample is shown with four layers marked A, B, C, D from top to bottom. Which of the following is true about the fossils found in layer B? It is the oldest among fossils in all other layers. It is the youngest among fossils in all other layers. It has more similarity to fossils in layer A than layer D. It has more similarity to fossils in layer D than layer C.

Match the digestive enzymes to the macro molecules they to digest. down fats into glycerol and fatty acids down carbohydrates into simple sugars down nucleic acids into nitrogenous bases and simple sugars down proteins into amino acids

After fertilization, which type of cellular division is responsible for the growth and development of a complex, multicellular organism?

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.