How can lifestyle affect the functioning of the respiratory and circulatory systems?

Pam currently runs on a track an hour a day, three days a week. how can she increase the intensity of her runs? start running five days a week start running in hilly areas or trails switch to walking six miles each day add 20 minutes to each run

Fresh meats (e.g., pork loin) are a better choice for heart health than processed meats (e.g., pork sausage) because (check all that apply) check all that apply fresh meats are lower in fat than processed meats. fresh meats are lower in fat than processed meats. fresh meats are lower in sodium than processed meats. fresh meats are lower in sodium than processed meats. fresh meats are lower in cholesterol than processed meats. fresh meats are lower in cholesterol than processed meats. fresh meats are higher in fiber than processed meats.

Although animals share many common characteristics, there is also a great amount of diversity found in animals. which animals are ectothermic, obtain dissolved oxygen in water through gills, have scales, have fins, and live in water?