What process uses atomic particles of carbon and uranium to determine exact age? Radioactive dating Law of superposition Relative dating Geologic time

What did hunter gathers do to alter the environment?

What is the name of the type of cell division that occurs in the prokaryotic cell cycle

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.