Maureen has missed her period and has been vomiting. which hormone levels will be checked using a urine pregnancy kit to confirm that she is pregnant? i don't fully understand what the question is could somebody me with this

Blood cells bring oxygen to cells and take carbon dioxide away. true or false

What is the answer to this particular question i have in health

A72-year-old woman fell in her bathtub and fractured her hip. in viewing the fracture, x-ray revealed osteoporotic changes in her bone as well. after reduction of the fracture, and immobilizing the bones with internal pins, what type of exercise would the doctor have advised her to do as soon as she was able in addition to prescribing calcium supplements to improve her bone mass?