The heart begins very early in mesoderm within the trilaminar embryonic disc. The heart forms initially in the embryonic disc as a simple paired tube inside the forming pericardial cavity, which when the disc folds, gets carried into the correct anatomical position in the chest cavity.
The correct answer to the question is infection
According to the principle of overload, endurance is increased when muscles work for a longer period of time than usual.
The right Answer will be True. I hope that help.
People can survive if without food for 8-21 days yet it would be better to just eat minimum amount of calories than starve one's self. It has been suggested that women should eat 1200 calories daily while men can eat 1500 calories as the minimum in a day. To maintain weight, women can have 1600-2400 calories daily while men 2000 to 3000 calories a day.
Lifting a box :- Muscular fitness
Swimming - Cardiovascular fitness
Touching one's toes - Flexibility
Stretching one's arms - Flexibility
Walking up stairs - Cardiovascular exercise
Running - Cardiovascular fitness
Doing push-ups - Muscular fitness
Carrying bags - Muscular fitness
Twisting one's arms - Flexibility