Why does the pc send out a broadcast arp prior to sending the first ping request

Question 1(multiple choice worth 5 points) (06.04 mc) how are the respiratory and circulatory systems similar? both systems provide glucose and other substances to cells. both systems regulate blood flow throughout the body. both systems remove carbon dioxide from the body. both systems send messages to the nervous system for breathing. question 2(multiple choice worth 5 points) (06.04 lc) the respiratory system controls and the circulatory systems controls antibodies; digestion breathing; blood flow muscles; bones nerves; senses question 3(multiple choice worth 5 points) (06.04 hc) read the following summary, which describes a body process. then, answer the question. blood enters the right side of the heart and travels to the lungs. there, the lungs eliminate carbon dioxide and exchange it for more oxygen. the oxygen-rich blood enters the left side of the heart. then, arteries carry blood away from the heart. what process is being described? circulation excretion immune response respiration question 4(multiple choice worth 5 points) (06.04 lc) the system is responsible for moving blood cells throughout the body. circulatory endocrine immune respiratory question 5(multiple choice worth 5 points) (06.04 mc) which of the following functions as part of the excretory and respiratory systems? blood heart intestines lungs

Someone with this coz i don’t really know what i can choose, just pick whatever u want. homework - you need to choose a website that you like or use frequently. you must visit the website and discuss 6 different features/parts/aspects of the website that you think makes it good. (100 words)

Which describes careers that have similar education requirements but different qualifications? product safety engineers and materials engineers industrial safety engineers and industrial health engineers quality control systems managers and inspectors industrial safety and health engineers and hand packers