Organisms are described as thermodynamically open systems. which of the following statements is consistent with this description?
the metabolism of an organism is isolated from its surroundings.
because energy must be conserved, organisms constantly recycle energy and thus need no input of energy.
organisms acquire energy from their surroundings.
heat produced by the organism is conserved in the organism and not lost to the environment.
all of the above

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.