âI think weâve read every single book they have.â Mark chuckled. He still wasnât ready to put the children downâWill was hanging off of one hip, his hand on Markâs shoulder as he stoically looked down at Bridget, and Mabel had nuzzled into the crook of Markâs neck with a contented sigh.
Diatoms are producers within the food chain. A unique feature of diatom cells is that they are enclosed within a cell wall made of silica (hydrated silicon dioxide) called a frustule. These frustules show a wide diversity in form, but are usually almost bilaterally symmetrical, hence the group name.
Diatoms are a major group of eukaryotic algae, and are one of the most common types of phytoplankton. Diatoms occur in virtually every environment that contains water.This in â¦ cludes not only oceans, seas, lakes and streams, but also soil.2 people found this useful.iatoms refers to the groups of algae. The diatoms are very  important because they are used to point out water pollution  because of their ability to uptake and combine the â¦ inorganic and  organic impurities. Answered. In Uncategorized.