Annelids have neither an external or an internal shell. Examples of annelids are
earthworms and leeches.
None of the above because they are non pollutant
Theories basic to all of the life sciences include the cell theory because all living things are made up of cells.
The best way to solve a transportation problem, is to give the following information:
m= The number of sources.
n= The number of destinations.
The total quantity available at each source.
The total quantity required at each destination.
The cost of transportation of one unit of the commodity from each source to each destination.
