I would say Rosa’s classmate probably wanted to talk to her or her help to put up the decorations or maybe the classmate was her best friend
The pedestrian should walk in the same side of the street and in the same direction as cars are traveling.
A Common misconception is that exercising you're core simply means working you're abdominal muscles. core exercises also strengthen you're hips hope this helps
Antigens are any molecules that elicit adaptive immune response. Antigens protrude from pathogens or other intruding substances. Antibodies are proteins found in blood plasma that attach to one particular kind of antigen and help to counter its effects.
The answer is Organs because the body works with your organs to keep you healthy and moving.
