The definition of a force majeure is an overpowering force, or an unexpected or uncontrollable event. An example of a force majeure is an earthquake. 1  superior or overwhelming power.  an unanticipated or uncontrollable event or effect which releases one from fulfillment of a contractual obligation.
Algae can either be unicellular or multicellular. Seaweeds are examples of multicellular algae. On the other hand, protozoans are unicellular, and they are more animal-like. People describe protozoa as a blob without a definite shape since they lack a cell wall.
Brown algae is the largest, most complex type of algae. This type of marine algae is brown, olive or yellowish-brown in color. Brown algae contains chlorophyll a and c and a pigment called fucoxanthin, which gives it its color. Fucoxanthin is not found in other algae or plants. Unlike red and green algae, brown algae are in the Kingdom Chromista. Brown algae are often rooted to a stationary structure such as a rock, shell or dock by a structure called a holdfast, although species in the genus Sargassum are free-floating.