12. About 85% of the world's is still produced by nuclear fission and burning fossil fuels.
A. oil
B. Natural gas
C. Coal
D. Electricity

How did the miller-urey experiment impact the way scientists think about the origins of life? use what you know about the miller-urey experiments to discuss the factors needed for life to arise, and speculate on whether life could arise on another planet.

This is the diveristy of ecosystems natural communites and habits it is the variety of ways that species interact with each other and their environment

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins