Answer: Alexandrium catenella is a species of dinoflagellates. Alexandrium has two flagella that enable it to swim. While one flagellum encircles the cell causing the cell to rotate and move forward, the other extends behind the cell and controls the direction.
The cell wall is composed of cellulose Theca.
Length 20 - 48 μm, width 18 - 34 μm
Yellow-green to orange-brown
Forms chains of 2, 4 or 8 cells
B. Habitat Destruction
This is because the wading birds' wetland habitat was destroyed by the housing developers. Since the wetland was drained, their habitat is no longer available to them for nesting or hunting.
Thomas Malthus was an English scholar and cleric who was known for his views in political science and demography (study of population). His views suggested that population would outpace food the supply of food and that the only vital parameters of population growth were famine, war and diseases. His writings on demography were influential in shaping the economic thinking.
Answer:
the answer is A decrease in food supply and prediation.
B. The peri-renal fat is good at protecting the kidney and keeping it in place
