Answer:
All viruses are obligate parasites; that is, they lack metabolic machinery of their own to generate energy or to synthesize proteins, so they depend on host cells to carry out these vital functions.
Mercury and Venus.
The order of the planets is
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, (and I guess based on your beliefs) and Pluto.
The answer is C. Using tantalum to produce cell phones
Answer: C) emperor penguin
Explanation: The others are ectothermic and not endothermic.
