Answer:
A. It uses the animal’s cellular machinery to reproduce inside the animal.
Explanation:
I would go with A because since it is a virus it cannot live outside the body and thus needs to rely on host's cell for metabolism as viruses are not capable of having their own metabolism.
Please find the answers CAPITALIZED below.
Mercury's SURFACE strongly resembles that of EARTH's SURFACE, with very large impact CRATERS
Mercury, the second densest of all planets shares an exterior similarity with the Earth's moon. Given the rough-like exterior feature of the moon, Mercury surface is scarred by craters due to the collisions of comets and meteroids.
The Gecko. While human-made devices inspired by gecko feet have emerged in recent years, enabling their wearers to slowly scale a glass wall, the possible applications of gecko-adhesion technology go far beyond Spiderman-esque antics. A researcher is looking into how the technology could be applied in a high-precision industrial setting, such as in robot arms used in manufacturing computer chips.