What are two ways in which ultrasound technology produces images? A. By detecting the frequencies of emitted sound waves
B. By using sound in frequencies that reflect off body tissues
C. By measuring the time it takes for reflected sound waves to be
detected
D. By the absorption of sound waves in the body

Select all the true statements about the cosmic microwave background radiation

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

Migration is a. the movement of organisms from a native location to a foreign location b. the movement of organisms from a foreign location to a native location the movement of organisms from their water supply to their food supply d. the seasonal movement of organisms between locations c. select the best answer from above