Cell membranes have specific protein channels for the movement of water, these structures are peripheral aquaporins hydrophilic heads carbohydrate markers

Study this image which statement best describes the rock shown check all that apply

The large increase in atmospheric carbon dioxide in the last 50 years most likely comes from a. an increase in cellular respiration b. increased decomposition by bacteria c. an increase in the burning of fossil fuels d. an increase in photosynthesis

Which of these is not a nucleotide base found in dna?