A hexahedron (plural: hexahedra) is any polyhedron with six faces. A cube, for example, is a regular hexahedron with all its faces square, and three squares around each vertex. There are seven topologically distinct convex hexahedra, one of which exists in two mirror image forms.
Some bacteria that can help the environment are called decomposers. They are nature's recyclers! They return basic chemicals to the environment for living things to reuse! For example, the leaves of many trees die in the Autumn and drop to the ground.ome bacteria that can help the environment are called decomposers. They are nature's recyclers! They return basic chemicals to the environment for living things to reuse! For example, the leaves of many trees die in the Autumn and drop to the ground.
Bacteria are prokaryotic organisms that reproduce asexually.  Bacterial reproduction most commonly occurs by a kind of cell  division called binary fission. Binary fission r â¦ esults in the  formation of two bacterial cells that are genetically identical.4 people found this useful.acteria and other microbes plays an important role in environment that is of DECOMPOSERS which acts in the last stage of food chain.