Question

A particle can infect humans and make them sick. It attaches to a host cell and injects its RNA, which the host uses to make proteins for the particle. This particle cannot reproduce on its own and can only copy itself by using the machinery of the host.

Answer 1

I'm sure the answer is Viruses, but if your looking for something specific I don't think I can help you with that.

Answer 2

Virus

Step-by-step explanation:

Viruses are particles that are not considered alive because they can not reproduce themselves. They need a host to multiply. They adhere to the cell wall and inject RNA with the necessary information to form identical copies. They force the host to use their own machinery to synthesize multiple identical copies.