Answer:
Spikes are found on some viruses. They are very consistent in structure and can be used for identification.
Explanation:
Viruses have varied structures. A virus particle is composed of DNA or RNA that is inside a protective layer of protein called a capsid. The shape of the capsid can vary from one type of virus to another. The capsid is composed of proteins that are encoded by viral genes within the virus genome.
The definition of an ecological relationship is the relationship between organisms in an ecosystem, so you can find them in almost any ecosystem.
B. Get Energy, Maintain Health, and Reproduce
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