The answer is 20 minutes a day in order to have an effective cardio exercise.
<span>Joints may be prepared for vigorous physical activity through stretching. Because stretching preps the joints for vigorous workouts.
I hope this helps!
</span>
Explanation:
The enzyme that act in carbohydrates is called <em>amylase</em><em>.</em>
salivary amylase break down carbohydrates into disaccharides
sucrose,lactase,and maltase break down
pancreatic amylase break down carbohydrates and disaccharides
monosaccharides are transported to the blood stream.
The sweat glands excrete excess salts and water.
Hope this helps :)