He was a 19th century inventor whose "mechanical reaper" allowed faster harvesting of grains, replacing scythes and sickles and allowing more food to be produced more quickly and cheaply.

For 50 points populations within ecosystems can be separated into categories—producers, consumers, and decomposers. these categories represent a. the fossil records of organisms. b. the reproductive methods of organisms. c. the body plans of organisms. d. the functions that organisms serve.