If you were married or an RDP as of the last day of the tax year or if your spouse/RDP died during the tax year, you may be considered unmarried or considered not in a registered domestic partnership for head of household purposes if you meet all of the following requirements:
1 The cell walls of these non-motile cells are made of chitin. 2  Fungi are heterotrophic organisms. 3  The only difference between other heterotrophic animals and fungi is that fungi digest and then ingest the food. 4  Fungi release enzymes on the body of the other living things and thrive on them. The only difference between other heterotrophic animals and fungi is that fungi digest and then ingest the food. 2  Fungi release enzymes on the body of the other living things and thrive on them. 3  Fungi lack chlorophyll, which is a pigment used by plants to produce food.
Fungi generally have the following characteristics: 1. They are eukaryotes. This means they have a nucleus which contains their genetic material (unlike bacteria, which do not have a nucleus).2. They are made of thin threads called hyphae.owever some fungi are made of a single cell eg yeast. The hyphae have a cell wall (like plant cells) made of a material called chitin (unlike plant cells). The hyphae are often multinucleate. This means that the cytoplasm is not divided up into separate cells, but contains many individual nuclei.