Answer: Parasites
Explanation:
Both tapeworms and lice depend on a living host to survive. The relationship between the parasite, tapeworm or lice, isn't mutual. The parasite only benefits from the relationship, because the host provides them with plenty of nutrients. In some cases, tapeworms and lice can carry diseases and infect the host. So, there is your answer and goodluck!
It is true! Contaminated groundwater is very difficult and sometimes impossible to purify!
According to the 37 page report published by the IFMA titled "Sustainability in the Food Service Environment" in 2011, it is estimated that 80% of the total energy spent at US restaurants are wasted. From the same report it was determined that the wasted energy comes from inefficient appliances, AC and ventilation system, and refrigerators producing excess heat and noise.
