1. Lacking elasticity; unyielding or unadaptable. See Synonyms at stiff. 2. Economics Of, relating to, or being a good for which changes in price have little effect on the quantity demanded or supplied: the inelastic demand for cigarettes.
The classification of algae is complex and somewhat controversial, especially concerning. the blue-green algae (Cyanobacteria), which are sometimes known as blue-green. bacteria or Cyanophyta and sometimes included in the Chlorophyta. These topics are. not covered in detail this document.
There are thousands of algae species spanning the Monera, Plantae and Protista kingdoms. Green algae species are members of Plantae, the plant kingdom. They share many characteristics unique to plants, but have only recently been included in that kingdom in the established taxonomic structure. Green algae is often confused with Blue-Green algae, which is actually a bacterial species and member of the Monera kingdom. (mtilghma/iStock/Getty Images).