In places where deposits of diatom shells have been lifted onto land by geological processes, people mine the resulting "diatomaceous earth.". Why?
What will be an ideal response?
Diatom shells are made of silica. This silica-rich material is used in filters and cleaners, and as an insecticide that is nontoxic to vertebrates.
You might also like to view...
Viruses have typical cellular structure like other living organisms.
Answer the following statement true (T) or false (F)
The cellular components of blood that transport oxygen are
A. leukocytes. B. erythrocytes. C. platelets. D. chondrocytes. E. osteocytes.
The most toxic substances routinely found in the blood are metabolites of
1.carbohydrates. 2.proteins. 3.lipids. 4.minerals. 5.vitamins.
The ________ is the site where lipids, triglycerides, and steroids are synthesized, as well as where calcium is stored within the cell.
A) lysosome B) smooth endoplasmic reticulum C) nucleolus D) mitochondria E) rough endoplasmic reticulum