A I think but can you get a better picture of the questions
The ileo-cecal (I-C) valve or sphincter controls the passage of digestive material from the Ileum (small intestine) into the cecum (large intestine).
Biotic factors of an ecosystem are all the living organisms that affect other organisms in an ecosystem and include animals, plants, microorganisms, dead organisms, and even animal waste. Example of biotic factors include: Grass as producers (autotrophs).
