Characteristics of epithelia include all of the following except

Characteristics of epithelia include all of the following except extracellular matrix.

Explanation:

The epithelial tissue is typically identified as having six characteristics and they are, it is made of cells. It contains cells joined by specialized contacts. Epithelial tissue has distinct upper and lower surfaces and is not supported by blood cells. It retains the ability to regenerate, and it  is supported by connective tissue.

It has also a feature called cellularity which means it is made completely of cells and there is no space that exist it is connected too close. Whereas in connective tissue, an area of non living matter exists in between the cells and that is called extra cellular matrix which is found in between the cells in the connective tissue.

step 1: nitrogen fixation- conversion of atmospheric no₂ into forms useful to plants by lightning, bacteria, and cyanobacteria.

step 2: nitrification-process of converting ammonia to nitrite or nitrate.

step 3: assimilation-plant roots absorb new form of nitrogen.

step 4: ammonification-conversion of organic nitrogen to ammonia by bacteria involved in decomposition.

step 5: denitrification-bacteria turns the decomposed matter back into n₂o, which is released into atmosphere; repeat cycle.