What are the differences between light and electron microscopes

Which was not a reason why canals were built in florida

What is point source pollution of an aquatic ecosystem? a) pollution of freshwater sources b) pollution from many sources that combine into one c) pollution that occurs over a wide area; water that runs off from fields, parking lots, and other land surfaces d) pollution that can easily be identified with a single discharge source, such as an open pipe which drains into a body of water

True or false: the ribosome reads the sequence of codons in mrna.