Electron microscope is used to see nucleus of a cell clearly
<span>The answer is A because it is true that these three stages consist the aerobic respiration.</span>
Answer:
The answer is option B. positive feedback
Explanation:
Positive feedback is a process in which the end product of a stimulus give rise to more of that stimulus. This mechanism is part of the system that regulates homeostasis in the body.
Multiply 5730 years by 2 since two half-lives have gone by for carbon.
<u>Explanation</u>:
The half-life of a radioactive isotope depicts the measure of time that it takes half of the isotope in an example decay. On account of radiocarbon dating, the half-existence of carbon 14 is 5,730 years
The half-life of carbon-14 is 5730 years.
In this manner, after
1 half-life there is 50 % = 1/2 of the first amount left.
2 half-lives there is 25 % = 1/4 of the first amount left.
25% is two half-lives.
Every 50% of life requires 5730 years.
So two half-lives require 2 × 5730
Saliva contains relatively few microbes compared to other body sites, because the concentration of antimicrobial enzymes limits their growth.
