What role do predators play in maintaining the balance of an ecosystem? a) they ensure that the ecosystem is not stripped entirely of its vegetation. b) they ensure that energy cannot be transferred to the rest of the food web. eliminate c) they are primarily responsible for the transfer of nutrients to the plants. d) they are primarily responsible for the cross pollination of plants in the ecosystem.

Enzyme speed up chemical reaction are which type of marcomolecule? a.carbohhydrates b.protiens c.lipids d.nucleic acids

When a gasoline engine burns gasoline, what type of chemical reaction is occurring?

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.