Our galaxy's arms spiral outward. The Milky Way is a type of galaxy called a spiral galaxy.
The shape of our galaxy, the spiral, is not irregular. Nearly 70% of the galaxies closest to the Milky Way are spiral.
Our galaxy does not contain the universe: the universe contains at least one hundred billion galaxies.
<span>The two strands of DNA are complementary. That is, there are four bases and each base in one strand interacts with only one base in the other strand. If you know all the bases in one strand you will be able to figure out all the bases in the other strand. I</span><span>f you are given a strand with the sequence ATTCAG, you know the strand it interacts with has to be TAAGTC. F</span><span>or example, A interacts only with T and C interacts only with G.</span>
Answer:
Pfiesteria species generally found in estuaries, the population of which are needed to be controlled only when they becomes toxic. Presence of large of fish triggers toxicity in Pfiesteria.
Explanation:
Pfiesteria are known to be associated with fish kills as for example large fish kill in the seas of North Carolina. It also causes blooming of algae in enormous numbers thus make the water bodies, hostile for survival of fishes and other marine lives. It affects human too by release of toxins in air and water often resulting in respiratory problems, infections of gastrointestinal system, headaches and fatigue. In this type of grave circumstances, leading to outburst of population of Pfiesteria, there is an urgent need to control.
Answer: I believe it is D, the Nervous System.
Explanation: