<span>The answer is letter D. <span>
<span>Interval
training is usually performed by seasoned or well-trained individuals because
of the high demand of speed and degrees of effort needed. Due to the nature of
alternating exercise activities within the program, it is preferred by some individuals because it is
fast and does not cause boredom. Beginners should not engage in this type of
training because of its explosive nature. Through rigorous and a
systematic training, beginners can eventually transition to this type of
exercise provided that they have been previously cleared because they have
already perfected and mastered the form of particular exercises.</span></span></span>
<span> </span>
Answer:
D. provitamin.
Explanation:
A provitamin is a substance that the body can transform into an active vitamin through metabolic processes. If compared with vitamins, provitamins have no biological activity or are much lower. In other words, provitamins are vitamin precursors.
Although not very frequent, sometimes you can see the term previtamin used as a synonym.
For example, beta-carotene, the most abundant carotenoid in nature, has about one sixth of the biological activity of retinol, or vitamin A, but can be transformed into retinol in the liver by an enzymatic reaction.
a minimum of 15 minutes.
the flow rate should be 0.4 gallons per minute
The answer is 2011, Hoping this helps
