True of false (all I need is a true or false) Do both sides of the heart receive blood at the same time

Advertisements are filled with images of extremely fit and sometimes even underweight people. what is an example of how these images might positively influence a person’s health choices? a) choosing to use weight loss supplements to increase weight loss b) electing to skip meals to reduce calorie intake until target weight is met c) figuring out ways to purge after meals to reduce the number of calories consumed d) finding ways to increase physical activity to burn calories and increase heart weight

Ireally need to know this answer asap

Felicia has a respiratory infection and has been coughing up a lot of mucus. she knows this means that her respiratory system is working to restore balance by getting rid of the invasive materials from her lungs. how does this happen?