How are humbugs usefull to humans?

The only way robots would be helpful to us as a human race, would be to fight wars for us. If they became slaves, someone would pull the same move the doctor did from Irobot. If robots had emotions,...

Yes, apple trees are important. Most people have their favorite fruit as apples meaning most people eat it It's food It tastes nice!!!!!!

The proper way of saying "Human to Human" is Human to Human. EX. Can a worm pass from Human to Human? No.

Mitochondrial DNA is passed in an unbroken line from mother to offspring. The father does not contibute mt DNA to his children. Any changes in DNA sequences builds up gradually from mutations only....

Human vs. Human is simply a conflict between two humans.