If the cell under the microscope appears to be in fourth grade it indicates that it is ready for cell divison or mitosis .
Explanation:
* if the cell reaches the fourth stage , it increases in size .
* At about the same time , the copying of the DNA happens
this is the stage where the growth of the cell stops completely .all the concentration would be towards the division of the cell.This is the stage where the cell divides into two daughter cells .after this division , the two daughter cells also ,begin their cell cycles. so ,fourth phase of cell cycle is the beginning of the cell cycles of many daughter cells also .
Answer:
Bacteria that have obtained the ability to resist the effects of antibiotics. As the diseases caused by these bacteria are hard to treat.
Explanation:
Darwin proposed that evolution is caused by natural selection.
During the industrial revolution caused tons of soot has been deposited in the countryside around industrial areas. The soot discoloured and generally darkened the surfaces of trees and rocks.
In 1848, a dark-coloured moth was first recorded. Today, in some areas, 90% or more of the-peppered moths are dark in colour. More than 70 species of moth in England have undergone a change from light to dark. Similar observations have been made in other industrial nations, including the United States.
Overusing and misusing of antibiotics causes antibiotic resistance. The ability of bacteria to resist the effects of an antibiotic is known as antibiotic resistance.
It occurs because of overuse and misuse of antibiotics over a long period of time. It also occurs if we do not use it as prescribed.
Antibiotics should not be taken every time we feel uncomfortable. We should not save it for next time and should not share it with others. If we overdose ourselves with it we may have serious side effects which can make us feel worse.
The body can decide the nutrients it needs
Answer:
There are 4 trophic levels in the following food chain.
<span>The scientific community ensure that all work done and shared is purely objective and based on solid facts and complete experimental procedure. Therefore, the scientific method is adopted to avoid bias in experiments. A bias would cause results to be skewed to fit the researchers' personal views, making the finding unreliable.</span>