Predict what might happen to this river ecosystem in a boreal forest biome if a dam were built

Which of the following happened during the precambrian era? the first prokaryotic cells the first eukaryotic cells development of photosynthesis all of the above

There are only about 250,000 known fossil species. true or false

If the selected review was submitted in word format, what are the posterior probabilities of it being short, medium, or long? (round your answers to three decimal places.)