(3) COOMI 4.2 What evidence is there from this study that coronary by-pass surgery is more successful than the use of drugs alone in treating coronary artery disease? (4) 4.3 Why does coronary artery disease limit a person's ability to perform vigorous exercise? 4.4 Give ONE symptom of coronary artery disease. TOTAL:50​

the correct answer: the index of refraction of the second medium is lower i tried this persons answer and it was wrong this person is lying

i think its control and coordinate because im pretty sure thats what tissue does and the joints are what control movement and then your skeletal/ bones provides portection. hope that .

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this