List of necessities for our body:
- Water.
- Food.
- Oxygen.
- The nervous system
Answer: drug
Explanation:
The substance that is being taken into the body or applied to the body in order to alter the biochemical functions of the body and its physiological processes is referred to as drug.
A drug is a chemical substance which is administered in order to have a biological effect on ones body. It can be utilized for either health-related purposes or for recreation.
This is False as they have actually had an increase in motorcyclists which have been killed and injured.
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 pandemic<span> (from Greek πᾶν pan "all" and δῆμος demos "people") is an </span>epidemic<span> of infectious disease that has spread through human populations across a large region; for instance multiple continents, or even worldwide.</span>