Antibodies are "natural" chemicals produced by the body's immune system<span> in response to infecting micro-organisms</span>
Iron the fabric.
Fold the fabric.
Measure the fabric. Measure 10.5″ x 10.5″ plus a 1″ allowance, making the measurements 11.5″ x 11.5″ before marking it.
Fold, then cut the fabric. Fold the fabric using your markings as your guide, forming a triangular shape, then cut it.
Sew it.
Cardio-respiratory fitness refers to the ability of the circulatory and respiratory systems to supply oxygen to skeletal muscles during sustained physical activity.
Muscular strength has to do with how strong your muscles get during physical activity.
Flexibility refers to the absolute range of movement in a joint or series of joints, and length in muscles that cross the joints to induce a bending movement or motion. It can be achieved through stretching which is fitness.
SO the correct answer is B.) bone density
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Get regular check ups, ask a doctor about lung health and breathing