The characteristics that distinguish phylum Annelida worms from simple worms include(s)
A. nephridia, a heart, and, in some cases, jaws.
B. the lack of a true digestive system.
C. metamerism.
D. nephridia, a heart, metamerism and, in some cases, jaws.

the generally accepted parts of modern cell theory include: all known living things are made up of one or more cells. all living cells arise from pre-existing cells by division. the cell is the fundamental unit of structure and function in all living organisms.

flooding wildfire landslides climate change the factors listed have an immediate effect on the animal populations found in any habitat. the four factors would lead to a death. b emigration. eliminate c immigration. d mutations.