8. Which technique involves the use of radioactivity and how does it support evolution by natural selection??

The similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between organisms in both locations?

Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules

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