Question

Red tides are caused by
A. Dinoflagellates
B. Fungi
C. Red algae
D. Dead bacteria

Answer 1

Hint:-Red tides are brought about by dinoflagellates. Red tide is a typical name for a marvel known as an algal bloom (enormous groupings of amphibian microorganisms) when it is brought about by a couple of types of dinoflagellates and the blossom takes on a red or earthy colored tone. Red tides are occasions in which estuarine, marine or new water green growth collect quickly in the water section, bringing about hue of the surface water. It is normally found in beach front zones.

Complete Answer:-The development and tirelessness of an algal bloom relies upon wind bearing and strength, temperature, supplements, and salinity. Red tide species can be found in seas, inlets, and estuaries, however they can't flourish in freshwater environments.
 Certain types of phytoplankton and dinoflagellates like 'Gonyaulax' found in red tides contain photosynthetic shades that shift in shading from earthy colored to red. These creatures go through such fast duplication that they cause the ocean to seem red.
 At the point when the green growth is available in high focuses, the water may have all the earmarks of being stained or cloudy. The most obvious impacts of red tides are the related untamed life mortalities and unsafe human presentation. The creation of regular poisons, for example, brevetoxins and ichthyo toxins are unsafe to marine life. Effects of red tides can intensify locally because of wind driven Langmuir flow and their organic impacts.

Note:- Red tides are not really red and many have no staining by any means. They are random to developments of the tides. The term is loosely used to allude to a wide assortment of algal species that are known as sprout formers. As a specialized term, it is being supplanted for more exact wording, including the conventional term "destructive algal blossom" for unsafe species, and "algal bloom" for favorable species.