Which of the following technologies would likely involve a bioengineer to design and build? O tablet computer
O surgical robot
o automobile engine

Ineed to know why d is the correct answer asap

What did not occur in the proterozoic eon a)the oxygen levels increase greatly in the atmosphere,b)the emergence of the eukarya , c)muti cella’s eukaryotic organisms began to diversify,d)anaerobic bacteria kept thriving with more oxygen

What materials must dams have to produce electricity, and what must occur?