HELP HELP 3. What theory describes how mitochondria and chloroplasts were derived from the relationship between the first eukaryotic cells and smaller prokaryotes?
A the theory of spontaneous generation C the theory of natural selection
B the plate tectonic theory D the endosymbiotic theory

Draw the farm's ppf for corn and beef. draw a point that shows an inefficient combination of corn and beef. label ita. draw a point that shows an unattainable combination of corn and beef. label itb. draw a point that shows an efficient combination of corn and beef. label itc.

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.

Consider the equation s + o2 ? so2. what is the product? question 3 options: s so 2 s + so 2 o 2