Viral<span> particles, also known as virions, consist of two or three parts: (i) the </span>genetic<span> material made from either DNA or RNA, long molecules that carry </span>genetic information; (ii) a protein coat, called the capsid, which surrounds and protects thegenetic<span> material</span>
Food webs normally start at the bottom and work their way up. Like the plants will be at the bottom, and then each level shows the animals getting bigger while losing energy. You continually lose energy as you work your way up an ecosystem, so normally there are only three or four levels. I hope this helps!