Is the practice of genetically modifying human cells ethical? And why? or why not?

Which type of scientific statement is defined as a hypothesis or group of hypotheses that can be accepted as true based on the repeated experimentation with similar results

Which of the following is an effect of the uneven heating of the earth by the sun? a sea breeze a land breeze a convection current all of the above

Plsss > .< compare and contrast the characteristics of flatworms rounds worms and earthworms