Answer:
Your answer is organ systems.

Which is not an echinoderm?
A.)starfish
B.)sea urchin
<h2>C.)squid</h2>
D.)sand dollar

<h3>Starfish, sea urchin and sand dollars are echinoderm. </h3>
<span>The filament of a flagellum rotates in a kind of sinusoidal motion, resembling a ship’s propeller or a corkscrew. Since the flagellum pushes instead of pulls, it is located at the rear of the microorganism. If there is more than one, they may act as a bundle. The direction of rotation determines the path of the microorganism. Flagella also serve as sensors, particularly for the detection of moisture.</span>
<span>Factors that can increase mutation rates are high and low temperatures, food additives, and UV rays. All of these answers are correct. Mutation rates in genes vary depending on many environmental effects. UV rays, along with varying temperatures, can cause mutations during cell division due to the damage they impart on the cells that are dividing. Dangerous food additives are believed to cause mutations, as seen in animal studies (ie. aspartame causing cancer in rats).</span>
Of the more that 7.4 billion people living in the world today nearly A BILLION PEOPLE suffer from malnutrition.
Malnutrition refers to lack of proper nutrition, it may be as a result of not having enough to eat or eating meals that lack necessary nutrients. Malnutrition is principally caused by poverty and a lot of people, especially from developing countries suffer from this condition. Malnutrition weakens body immunity and make the body susceptible to diseases.<span />