If a woman with type A blood and a man with type O blood have children and all of those have type A blood , what are the genotypes of both of the parents?

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.

Are the earth's ocean floor and continents the same age geologically? why or why not?

Explain why biological control methods are generally environmentally superior to chemical pest control methods.