Answer: The upper gastrointestinal tracts organs consist Esophagus, stomach and duodenum.
Explanation:
Gastrointestinal tracts is a organ system found in human beings and other animals that deals with intake of food, digestion of food, adsorbing nutrients from the digested food and expelling or excreting the waste products and undigested food.
The gastrointestinal tracts is divided into two, the upper and lower gastrointestinal tracts. The upper gastrointestinal tracts organs consist of Esophagus, stomach and duodenum while the lower gastrointestinal tracts consist of the large and small intestine. The structures include anus, colon,rectum,caecum.
The answer to this question would be: <span>C) cell type, prokaryotic versus eukaryotic. </span>
In six-kingdom classification, the cell type would be same for each kingdom. A kingdom should only have either prokaryotic or eukaryotic
A different method of reproduction needs an advanced organ and not all kingdom have it. Consumer/producer or unicellular/multicellular classification cant differentiate between the kingdom since one kingdom can have a member with those traits.
Answer:dissolved oxygen and salinity
Explanation: