Because there are children in africa starving... Duhhh!!!!!
Muscle fibers can be divided into two general categories: Category I, which is sluggish, and Type II, which is quick.There are three primary fiber types in type II, which is further divided into type IIA (oxidative) and type IIX (glycolytic).These fibers exhibit comparatively unique features in terms of metabolism, contractility, and motor units.
<h3>
Which cell types make up skeletal muscle?</h3>
These cells to make up muscular tissue are referred to as myocytes, or muscle cells.The human body contains three different types of muscle cells: cardiac, skeletal, or smooth.
<h3>How many different types of cells exist?</h3>
Your body has roughly 200 different kinds of cells.These cells help to build your tissues and organs as well as your immune system, which works to protect your body.Your body regularly replaces its dead cells with new ones.
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Because without it you would have no support to stand
Answer:Hiking uphill.
Cycling more than 10 miles per hour or steeply uphill.
Swimming fast or lap swimming.
Dancing, fast dancing, and step aerobics.
Strength training.
Heavy gardening with digging, hoeing
Explanation:
For an activity to be vigorous, you need to work at 70 to 85 percent of your maximum heart rate, according to the American Heart Association. Examples of vigorous exercise include: running. cycling at 10 mph or faster
