Answer:
Viruses latch onto other cells (host cells) in order to reproduce. They do not reproduce by themselves. Instead, they use another cell to repopulate.
Explanation:
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Fartttttttttssssssssssssss
A procaryotic cell has five essential structural components: a nucleoid (DNA), ribosomes, cell membrane, cell wall, and some sort of surface layer, which may or may not be an inherent part of the wall.
Answer:
NASA studied astronaut twins Mark & Scott Kelly to determine the effects of staying in space for a year. ... Space presents unique stresses to the human body. With lower gravity levels, for example, bones and muscles are more likely to become weak since they no longer have to support the weight of the body.