i think its energy that made by our body.. its form from a chemical substance (from food). The chemical energy in our body is the heat we give.
Survival of the fittest means only the strong will survive and the weak will die
Answer: AV node will takeover the function of SA node if it’s not functioning, but definitely at a slower rate than SA node.
Explanation:
The answer is <span>C. Change in odor.
There are several signs of chemical reaction:
1. Dissolved precipitate.
2. Formation of gas (bubbles).
3. Change of color.
4. Change of temperature (warming or cooling).
5. Production of energy.
Among these signs, there is no change in odor, which is, thus, the right choice.</span>
These groupings are called domains.
<span>A domain is the highest taxonomic rank of organisms. Carl Woese, an American microbiologist, and biophysicist designed the three-domain system which describes that the tree of life consists of three domains: Archaea, Bacteria, and Eukarya. Each of these three domains of life is characterized by rRNA which is unique to them.</span>
