New York State Chemistry RegentsNew York State Earth Science Regents

Living Environment Regents Review Practice Organization of Life Question 1 PDF Print E-mail
Monday, 29 June 2009 10:22

Which statement correctly describes one characteristic of the tube like digestive system of an earthworm?

A) The shape of the system allows food to be processed by intracellular digestion.

B) The shape of the system eliminates the need for egestion.

C) Various parts of the system perform different digestive functions.

D) Digestive enzymes are not used in the system.

Correct Answer: Option C - Various parts of the system performs different digestive functions.

The mouth is used for ingestion, the intestine for digestion, and the anus for egestion. Worms perform extracellular digestion because the food is digested outside of individual cells; food is digested within a tube. Enzymes are necessary for all chemical digestion.

Last Updated on Thursday, 02 July 2009 06:54

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