The remora attaches itself to sharks by means of its –like mouth. it gets free transportation and protection and also the remnants of food material that escapes the shark's mouth. the shark does not benefit and is not harmed in any way by the remora. what kind of interaction do the remora and the shark demonstrate? a. commensalism
b. parasitism
c. mutualism

One of the newest applications of cell technology is called cybrid embryos. this process involves replacing the nuclear material of an animal cell with human nuclear material. how might this process affect public policies about research by using stem cells? the same policies and concerns about the use of human embryonic stem cells would most likely apply. the embryos would most likely be treated like traditional animal embryos and regulated accordingly. the process of forming cybrid embryos would most likely be banned by government regulators. the embryos would be treated as regular cells because they are not fully human in origin.

9. technology can bring both good and bad things. building a vertical farm can increase food supplies in cities (good), but it may cause unemployment in rural areas (bad). give another example of both the good and bad sides of a technological advancement (5 noints)

How far away is the nearest black hole from earth?